Latex-workshop: Show "Loading" when the cursor hover on the equations

[Frank17]

Disable all the other extensions except for LaTeX Workshop, and check that you still see this issue. [Required]

You still see this issue?: Yes

Describe the bug [Required]
There is a problem that the tooltip shows me "Loading" when editing the text file, and the latex compiler could be hanging on as the file could not be saved to the disk and could not trigger the compiler to build PDF.

When I've removed the command "renewcommand", the problem seems to be resolved. See logs as Developer Tools Console, it reports the error: "TeX parse error: Illegal control sequence name for renewcommand"

To Reproduce
Steps to reproduce the behavior:

1. Edit a tex file.
2. Insert equations in the file, and some long equations.
3. See error.

Here is my settings:

{
    "latex-workshop.latex.recipes": [
        {
          "name": "xelatex",
          "tools": [
            "xelatex"
          ]
        },
        {
          "name": "xelatex ➞ bibtex ➞ xelatex × 2",
          "tools": [
            "xelatex",
            "bibtex",
            "xelatex",
            "xelatex"
          ]
        },
        {
          "name": "pdflatex ➞ bibtex ➞ pdflatex × 2",
          "tools": [
            "pdflatex",
            "bibtex",
            "pdflatex",
            "pdflatex"
          ]
        }
      ],
      "latex-workshop.latex.tools": [
        {
          "name": "latexmk",
          "command": "latexmk",
          "args": [
            "-synctex=1",
            "-interaction=nonstopmode",
            "-file-line-error",
            "-pdf",
            "-outdir=%OUTDIR%",
            "%DOC%"
          ],
          "env": {}
        },
        {
          "name": "xelatex",
          "command": "xelatex",
          "args": [
            "-synctex=1",
            "-interaction=nonstopmode",
            "-file-line-error",
            "%DOC%"
          ]
        },
        {
          "name": "pdflatex",
          "command": "pdflatex",
          "args": [
            "-synctex=1",
            "-interaction=nonstopmode",
            "-file-line-error",
            "%DOC%"
          ],
          "env": {}
        },
        {
          "name": "bibtex",
          "command": "bibtex",
          "args": [
            "%DOCFILE%"
          ],
          "env": {}
        }
      ],
}

Expected behavior
Show the preview of the equation in the tooltip rather than the symbol "Loading".

Logs [Required]

LaTex Workshop extension logs:

[13:57:17] Found root file from active editor: /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex
[13:57:17] Root file remains unchanged from: /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex.
[13:57:17] Parsing /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex
[13:57:17] File watcher: responding to change in /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex
[13:57:17] /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex changed. Auto build project.
[13:57:17] BUILD command invoked.
[13:57:17] Building root file: /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex
[13:57:17] Build root file /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex
[13:57:17] Recipe step 1: xelatex, -synctex=1,-interaction=nonstopmode,-file-line-error,-pdf,-outdir=/Users/frank/Documents/学习工作/研究生/统计机器学习,/Users/frank/Documents/学习工作/研究生/统计机器学习/notes
[13:57:17] LaTeX build process spawned. PID: 7250.
[13:57:19] Cannot parse /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex: Fall back to regex-based completion.
[13:57:19] LaTeX log parsed with 1 messages.
[13:57:19] Recipe of length 1 finished. PID: 7250.
[13:57:19] Successfully built /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex.
[13:57:19] No PDF viewer connected for /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.pdf
[13:57:57] Found root file from active editor: /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex
[13:57:57] Root file remains unchanged from: /Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex.

LaTex Compiler logs:

This is XeTeX, Version 3.14159265-2.6-0.99999 (TeX Live 2018) (preloaded format=xelatex)
 restricted \write18 enabled.
entering extended mode
(/Users/frank/Documents/学习工作/研究生/统计机器学习/notes.tex
LaTeX2e <2018-04-01> patch level 2
Babel <3.18> and hyphenation patterns for 84 language(s) loaded.
(/usr/local/texlive/2018/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/usr/local/texlive/2018/texmf-dist/tex/latex/base/size12.clo)) (/usr/local/texlive/2018/texmf-dist/tex/xelatex/xecjk/xeCJK.sty (/usr/local/texlive/2018/texmf-dist/tex/latex/l3kernel/expl3.sty (/usr/local/texlive/2018/texmf-dist/tex/latex/l3kernel/expl3-code.tex) (/usr/local/texlive/2018/texmf-dist/tex/latex/l3kernel/l3xdvipdfmx.def)) (/usr/local/texlive/2018/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/l3packages/xparse/xparse.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/fontspec/fontspec.sty (/usr/local/texlive/2018/texmf-dist/tex/latex/fontspec/fontspec-xetex.sty (/usr/local/texlive/2018/texmf-dist/tex/latex/base/fontenc.sty (/usr/local/texlive/2018/texmf-dist/tex/latex/base/tuenc.def)) (/usr/local/texlive/2018/texmf-dist/tex/latex/fontspec/fontspec.cfg))) (/usr/local/texlive/2018/texmf-dist/tex/xelatex/xecjk/xeCJK.cfg)) (/usr/local/texlive/2018/texmf-dist/tex/latex/amsmath/amsmath.sty
For additional information on amsmath, use the `?' option.
(/usr/local/texlive/2018/texmf-dist/tex/latex/amsmath/amstext.sty (/usr/local/texlive/2018/texmf-dist/tex/latex/amsmath/amsgen.sty)) (/usr/local/texlive/2018/texmf-dist/tex/latex/amsmath/amsbsy.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/amsmath/amsopn.sty)) (/usr/local/texlive/2018/texmf-dist/tex/latex/hyperref/hyperref.sty (/usr/local/texlive/2018/texmf-dist/tex/generic/oberdiek/hobsub-hyperref.sty (/usr/local/texlive/2018/texmf-dist/tex/generic/oberdiek/hobsub-generic.sty)) (/usr/local/texlive/2018/texmf-dist/tex/latex/graphics/keyval.sty) (/usr/local/texlive/2018/texmf-dist/tex/generic/ifxetex/ifxetex.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/oberdiek/auxhook.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/oberdiek/kvoptions.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/hyperref/pd1enc.def) (/usr/local/texlive/2018/texmf-dist/tex/latex/latexconfig/hyperref.cfg) (/usr/local/texlive/2018/texmf-dist/tex/latex/url/url.sty)) (/usr/local/texlive/2018/texmf-dist/tex/latex/hyperref/hxetex.def (/usr/local/texlive/2018/texmf-dist/tex/latex/hyperref/puenc.def) (/usr/local/texlive/2018/texmf-dist/tex/generic/oberdiek/stringenc.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/oberdiek/rerunfilecheck.sty)) (/usr/local/texlive/2018/texmf-dist/tex/latex/amsfonts/amsfonts.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/amsfonts/amssymb.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/graphics/graphicx.sty (/usr/local/texlive/2018/texmf-dist/tex/latex/graphics/graphics.sty (/usr/local/texlive/2018/texmf-dist/tex/latex/graphics/trig.sty) (/usr/local/texlive/2018/texmf-dist/tex/latex/graphics-cfg/graphics.cfg) (/usr/local/texlive/2018/texmf-dist/tex/latex/graphics-def/xetex.def)))
*************************************************
* xeCJK warning: "fandol"
* 
* Fandol is being set as the default font for CJK text.
* Please make sure it has been properly installed.
*************************************************
*************************************************
* fontspec warning: "script-not-exist"
* 
* Font 'FandolSong-Regular' does not contain script 'CJK'.
*************************************************
(./notes.aux) (/usr/local/texlive/2018/texmf-dist/tex/latex/hyperref/nameref.sty (/usr/local/texlive/2018/texmf-dist/tex/generic/oberdiek/gettitlestring.sty)) (./notes.out) (./notes.out) (/usr/local/texlive/2018/texmf-dist/tex/latex/amsfonts/umsa.fd) (/usr/local/texlive/2018/texmf-dist/tex/latex/amsfonts/umsb.fd) (./notes.toc (/usr/local/texlive/2018/texmf-dist/tex/generic/oberdiek/se-ascii-print.def) [1]) [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21]
Overfull \hbox (9.5646pt too wide) detected at line 779
[][]
[22] [23] [24] [25] [26] [27] (./notes.aux) )
(see the transcript file for additional information)
Output written on notes.pdf (27 pages).
SyncTeX written on notes.synctex.gz.
Transcript written on notes.log.

LaTeX Workshop Output [Required]

No output.

Developer Tools Console [Required]

[Extension Host] Error when JSON.parse theme files.
workbench.desktop.main.js:sourcemap:243 [Extension Host] Unexpected token ] in JSON at position 3948
<b>workbench.desktop.main.js:sourcemap:243 [Extension Host] TeX parse error: Illegal control sequence name for \renewcommand
t.log @ workbench.desktop.main.js:sourcemap:243</b>
$logExtensionHostMessage @ workbench.desktop.main.js:sourcemap:3494
_doInvokeHandler @ workbench.desktop.main.js:sourcemap:3505
_invokeHandler @ workbench.desktop.main.js:sourcemap:3504
_receiveRequest @ workbench.desktop.main.js:sourcemap:3503
_receiveOneMessage @ workbench.desktop.main.js:sourcemap:3502
_protocol.onMessage.e @ workbench.desktop.main.js:sourcemap:3500
fire @ workbench.desktop.main.js:sourcemap:116
fire @ workbench.desktop.main.js:sourcemap:365
_receiveMessage @ workbench.desktop.main.js:sourcemap:369
_socketDisposables.push._socketReader.onMessage.e @ workbench.desktop.main.js:sourcemap:366
fire @ workbench.desktop.main.js:sourcemap:116
acceptChunk @ workbench.desktop.main.js:sourcemap:362
_register._socket.onData.e @ workbench.desktop.main.js:sourcemap:361
t @ workbench.desktop.main.js:sourcemap:372
emit @ events.js:182
addChunk @ _stream_readable.js:283
readableAddChunk @ _stream_readable.js:264
Readable.push @ _stream_readable.js:219
onStreamRead @ internal/stream_base_commons.js:94
workbench.desktop.main.js:sourcemap:243 [Extension Host] Error when JSON.parse theme files.
workbench.desktop.main.js:sourcemap:243 [Extension Host] Unexpected token ] in JSON at position 3948
workbench.desktop.main.js:sourcemap:243 [Extension Host] TeX parse error: Illegal control sequence name for \renewcommand
t.log @ workbench.desktop.main.js:sourcemap:243
$logExtensionHostMessage @ workbench.desktop.main.js:sourcemap:3494
_doInvokeHandler @ workbench.desktop.main.js:sourcemap:3505
_invokeHandler @ workbench.desktop.main.js:sourcemap:3504
_receiveRequest @ workbench.desktop.main.js:sourcemap:3503
_receiveOneMessage @ workbench.desktop.main.js:sourcemap:3502
_protocol.onMessage.e @ workbench.desktop.main.js:sourcemap:3500
fire @ workbench.desktop.main.js:sourcemap:116
fire @ workbench.desktop.main.js:sourcemap:365
_receiveMessage @ workbench.desktop.main.js:sourcemap:369
_socketDisposables.push._socketReader.onMessage.e @ workbench.desktop.main.js:sourcemap:366
fire @ workbench.desktop.main.js:sourcemap:116
acceptChunk @ workbench.desktop.main.js:sourcemap:362
_register._socket.onData.e @ workbench.desktop.main.js:sourcemap:361
t @ workbench.desktop.main.js:sourcemap:372
emit @ events.js:182
addChunk @ _stream_readable.js:283
readableAddChunk @ _stream_readable.js:264
Readable.push @ _stream_readable.js:219
onStreamRead @ internal/stream_base_commons.js:94
workbench.desktop.main.js:sourcemap:243 [Extension Host] rejected promise not handled within 1 second: TeX parse error: Illegal control sequence name for \renewcommand
t.log @ workbench.desktop.main.js:sourcemap:243
$logExtensionHostMessage @ workbench.desktop.main.js:sourcemap:3494
_doInvokeHandler @ workbench.desktop.main.js:sourcemap:3505
_invokeHandler @ workbench.desktop.main.js:sourcemap:3504
_receiveRequest @ workbench.desktop.main.js:sourcemap:3503
_receiveOneMessage @ workbench.desktop.main.js:sourcemap:3502
_protocol.onMessage.e @ workbench.desktop.main.js:sourcemap:3500
fire @ workbench.desktop.main.js:sourcemap:116
fire @ workbench.desktop.main.js:sourcemap:365
_receiveMessage @ workbench.desktop.main.js:sourcemap:369
_socketDisposables.push._socketReader.onMessage.e @ workbench.desktop.main.js:sourcemap:366
fire @ workbench.desktop.main.js:sourcemap:116
acceptChunk @ workbench.desktop.main.js:sourcemap:362
_register._socket.onData.e @ workbench.desktop.main.js:sourcemap:361
t @ workbench.desktop.main.js:sourcemap:372
emit @ events.js:182
addChunk @ _stream_readable.js:283
readableAddChunk @ _stream_readable.js:264
Readable.push @ _stream_readable.js:219
onStreamRead @ internal/stream_base_commons.js:94
workbench.desktop.main.js:sourcemap:1521   ERR TeX parse error: Illegal control sequence name for \renewcommand
workbench.desktop.main.js:sourcemap:243 [Extension Host] rejected promise not handled within 1 second: TeX parse error: Illegal control sequence name for \renewcommand

Screenshots

Desktop [Required]:

• OS: macOS 10.14.6
• VS Code version: 1.39.1
• Extension version: 8.2.0

Are you using LaTeX Workshop with VS Code Remote?

No

[tamuratak]

Please show us log messages.

1. Please change all the user settings of VSCode to the default ones, and check that you still see this issue.
2. Please disable all the other extensions except for LaTeX Workshop, and check that you still see this issue.

[Frank17]

@tamuratak I update my this bug report and give my settings. Because this file is in Chinese, I need to use xelatex, but the default is latexmk.

[tamuratak]

Please paste the whole log messages. The log must begin with [XX:XX:XX] Initializing LaTeX Workshop.

Do you still see the following issue?

the file could not be saved to the disk and could not trigger the compiler to build PDF.

The following message says MathJax cannot parse LaTeX commands defined with renewcommand in your TeX file. There is nothing we can do on our side. This problem does not affect LaTeX compilation.

"TeX parse error: Illegal control sequence name for renewcommand"

[tecosaur]

@tamuratak perhaps we could have it so that if mathjax had an error, we could show "Error" instead of "Loading". What do you think?

[tamuratak]

Off topic

[Frank17]

I am sure that it is not caused by the compiler, here is the entire log for a new tex file. @tamuratak

After testing, I found that it is a problem caused by MathJax when I use \renewcommand{\partname}{xxx}. I'll give you my test file as below.

[15:22:21] Initializing LaTeX Workshop.
[15:22:21] Creating LaTeX Workshop http and websocket server.
[15:22:21] LaTeX Workshop initialized.
[15:22:23] Found root file from active editor: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:23] Root file changed from: undefined to /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex. Find all dependencies.
[15:22:23] Instantiating a new file watcher for /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:23] Creating file watcher for .bib files.
[15:22:23] Parsing /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:23] Server created on 127.0.0.1:49949
[15:22:23] Adding /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex to file watcher.
[15:22:23] Snippet data loaded.
[15:22:23] VIEW command invoked with mode: file:///Users/frank/Documents/%E5%AD%A6%E4%B9%A0%E5%B7%A5%E4%BD%9C/%E7%A0%94%E7%A9%B6%E7%94%9F/%E7%BB%9F%E8%AE%A1%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/englishtest.tex.
[15:22:23] Found root file from active editor: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:23] Root file remains unchanged from: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex.
[15:22:23] Serving PDF file at http://localhost:49949/viewer.html?file=pdf..JTJGVXNlcnMlMkZmcmFuayUyRkRvY3VtZW50cyUyRiVFNSVBRCVBNiVFNCVCOSVBMCVFNSVCNyVBNSVFNCVCRCU5QyUyRiVFNyVBMCU5NCVFNyVBOSVCNiVFNyU5NCU5RiUyRiVFNyVCQiU5RiVFOCVBRSVBMSVFNiU5QyVCQSVFNSU5OSVBOCVFNSVBRCVBNiVFNCVCOSVBMCUyRmVuZ2xpc2h0ZXN0LnBkZg
[15:22:23] The encoded path is /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.pdf
[15:22:23] Open PDF tab for /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.pdf
[15:22:23] LaTeX Workshop version: 8.2.0
[15:22:24] Found root file from active editor: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:24] Root file remains unchanged from: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex.
[15:22:24] Handle data type: open
[15:22:24] Preview PDF file: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.pdf
[15:22:24] Handle data type: loaded
[15:22:26] Found root file from active editor: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:26] Root file remains unchanged from: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex.
[15:22:27] Parsing /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:27] File watcher: responding to change in /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:27] /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex changed. Auto build project.
[15:22:27] BUILD command invoked.
[15:22:27] Building root file: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:27] Build root file /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:22:27] Recipe step 1: xelatex, -synctex=1,-interaction=nonstopmode,-file-line-error,/Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest
[15:22:27] LaTeX build process spawned. PID: 7673.
[15:22:28] LaTeX log parsed with 0 messages.
[15:22:28] Recipe of length 1 finished. PID: 7673.
[15:22:28] Successfully built /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex.
[15:22:28] Refresh PDF viewer for /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.pdf
[15:22:28] Handle data type: position
[15:22:28] Preview PDF file: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.pdf
[15:22:28] Handle data type: loaded
[15:23:28] Found root file from active editor: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:23:28] Root file remains unchanged from: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex.
[15:23:30] Parsing /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:23:30] File watcher: responding to change in /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:23:30] /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex changed. Auto build project.
[15:23:30] BUILD command invoked.
[15:23:30] Building root file: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:23:30] Build root file /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex
[15:23:30] Recipe step 1: xelatex, -synctex=1,-interaction=nonstopmode,-file-line-error,/Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest
[15:23:30] LaTeX build process spawned. PID: 7677.
[15:23:31] LaTeX log parsed with 0 messages.
[15:23:31] Recipe of length 1 finished. PID: 7677.
[15:23:31] Successfully built /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.tex.
[15:23:31] Refresh PDF viewer for /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.pdf
[15:23:31] Handle data type: position
[15:23:31] Preview PDF file: /Users/frank/Documents/学习工作/研究生/统计机器学习/englishtest.pdf
[15:23:31] Handle data type: loaded

Test File:

\documentclass[a4paper, 12pt]{article}

\usepackage{amsmath}
\renewcommand{\contentsname}{Contents}
\renewcommand{\figurename}{Fig}
\renewcommand{\tablename}{Table}
\renewcommand{\partname}{xxx}
\renewcommand{\thepart}{The \arabic{part}}
\renewcommand{\listfigurename}{Figures}
\renewcommand{\listtablename}{Tables}
\renewcommand{\refname}{Refs}
\renewcommand{\appendixname}{Appendix}
\renewcommand{\indexname}{Indexing}
\renewcommand{\theequation}{\arabic{section}.\arabic{equation}}

\title{Test}
\author{Zhipeng Zou}
\begin{document}
  \tableofcontents
  \maketitle

  \part{}

  \section{One}
  This is a equation: $\mathbf{A} \times \mathbf{B}$

  This is block one: 

  $$
  \sum_{i=1}^n y^i\log \hat{y}^i
  $$

  As this is a inline equation $\sigma(x) = \frac{1}{1 + e^{-x}}$, so that, we can reproduce this problem.
\end{document}

When there is the statement \renewcommand{\partname}{xxx}, the problem could be reproduced. If I toggled that statement, it works normally. It can be tracked in the developer tools of the VSCode.

If there is the statement `,[Extension Host] TeX parse error: Illegal control sequence name for renewcommand` will be thrown when the cursor hovers.

If I toggle that, the logs of the developer tools is ok.

[tamuratak]

Please answer yes or no. Do you still see the following issue?

the file could not be saved to the disk and could not trigger the compiler to build PDF.

If yes, please show us the whole log when the error occurred. And, tell us where in the log the error occurred.

[Frank17]

OK, fine. The problem you focus on occurs sometimes, but now it can be saved and compile.

[tamuratak]

If the compilation problem occurs again, feel free to reopen this issue.

[yyb1995]

I encountered this problem recently. Actually it can be perfectly solved by adding "latex-workshop.hover.preview.newcommand.parseTeXFile.enabled": false in setting.json or unchecking Latex-workshop>Hover>Preview>Newcommand>Parse TeXFile: Enable. Hope this can help you.

[tamuratak]

Please open a new issue filling out all the information required in the issue template if you see a similar problem.