Texstudio: The ToolTip-preview disappears immediately

[Dellu]

Environment

• TeXstudio: 2.12.14 (as well as 2.12.14)
  Using Qt Version 5.11.2, compiled with Qt 5.11.2 R
• OS: Mac OS 10.13.4
• TeX distribution: texlive

Expected behavior

The citation autocomplete preview used to show the references as long as I wanted.

http://take.ms/RCfqH

Actual behavior

The tooltip-preview now disappearing immediately.
I tried to re-install Texstudio (tried both version 2.12.12 & 2.12.14). I also removed my profiles (deleted .config file in the user folder). But, the preview just disappears. I don't know why this happens.

here is a video if you guys want to see it.
http://take.ms/2zDXr

How to reproduce

Just try to use the autocomplete feature.

[Dellu]

I found a similar issue described in stackexchange: https://tex.stackexchange.com/questions/120370/texstudio-commands-on-mouse-over-quickly-disappear
But, the solution given there doesn't work for me.

[Dellu]

I just realized that the problems is introduced in version 2.12.10 beta 1.
(Version 2.12.8 works as expected).
The preview window (the yellow preview) stays there until I move the cursor to the next reference
http://take.ms/xJ41z
This is the normal behavior

I believe the bug is introduced when @sunderme was adding the fuzzy autocomplete feature.

[sunderme]

can't reproduce

[Dellu]

can't reproduce

are you using the Mac version?

[sunderme]

I can‘t reproduce it on win 10.

[sunderme]

okay, i try again on osx

[sunderme]

looks like qt bug,starting from qt 5.11.
I don‘t see an approach to avoid the bug. if you click on the completer entry, the tooltip stays as expected.

[Dellu]

Thanks for the follow-up dear @sunderme

looks like qt bug,starting from qt 5.11.
I don‘t see an approach to avoid the bug.

OH, that is unfortunate.

I can report the bug to the developers of QT: but, I am not even sure how to describe the problem because qt seems an underlying framework: I barely know anything about it. I am just a regular user; know nothing about software development.

Anyways, I have reported the problem to the developers of qt in layman terms: https://github.com/therecipe/qt/issues/795

I was thinking if you guys communicate with each other (with the developers of qt)?
(or at least describe the problem in terms that the developers of qt would understand).

[Dellu]

Upon the recommendations from Github page of QT, I now reported the issue in another page: https://bugreports.qt.io/browse/QTBUG-74658

[gaochenyi]

Same issue here.
It seems installing an old version before 2.12.10 beta 1 is a work-around?

The developers of QT do not respond to the bug report made by @Dellu .
Could anyone kindly improve the bug report?

Environment

• TeXstudio: 2.12.16
• Qt: Qt 5.12.3 R
• OS: macOS Sierra 10.12.6
• TeX distribution: texlive

[siebediels]

Same issue on Windows 10 with TeXstudio 2.12.16 and Qt 5.12.1 R (using texlive).
Has anyone found a solution already?

[bttger]

I have the same issue on two computers (both Windows 10) with TexStudio 2.12.16 and TeXstudio 3.0.1, Qt Version 5.12.1.

The only workaround I found so far is to disable the checkbox "Show preview as tooltip on formulas in editor" under the preview tab.

[muzimuzhi]

Upon the recommendations from Github page of QT, I now reported the issue in another page: https://bugreports.qt.io/browse/QTBUG-74658

@Dellu @sunderme Noted the bug report to Qt was quickly closed due to lack of a minimal test case.