See below
Describe the issue you encountered: Bookmarks cannot be moved to Other Bookmarks folder.

In the gif the bookmark is moved to the last row inside Bookmarks Toolbar folder.
Platform (Win7, 8, 10? macOS? Linux distro?): Debian
Brave Version (revision SHA): 0.18.12
Steps to reproduce:
Other BookmarksActual result: the bookmark is not moved to the folder
Expected result: the bookmark should be moved to the folder
Extra QA steps:
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Any related issues: #8024
Yes this is because we only allow 0+ (not -1) for parent folder id. I notice this as well while I was working on my PR as well
fyi it has been possible to do so when I opened https://github.com/brave/browser-laptop/issues/8024
yeah I think that this is a regression
Like the record, moving bookmarks from Bookmark Toolbar folder and it's subfolder to Other Bookmarks folder will move that bookmarks to Bookmark Toolbars folder not Other Bookmarks.
Similarly with moving a folder to 'Other Bookmarks'.

+1
FWIW I am having this problem as well. The "Other Bookmarks" folder might as well not exist.
Brave: 0.18.23
rev: 36ae2ec06efed0057ae16351108bf4d4c10a7ab4
Muon: 4.3.10
libchromiumcontent: 60.0.3112.90
V8: 6.0.286.52
Node.js: 7.9.0
Update Channel: dev
OS Platform: Microsoft Windows
OS Release: 6.1.7601
OS Architecture: x64
+1 on this issue. Cannot move a single bookmark into "Other Bookmarks."
Brave: 0.18.36
rev: 7ab85e97318fef041433b0c3d73b457205fae805
Muon: 4.3.22
libchromiumcontent: 61.0.3163.79
V8: 6.1.534.32
Node.js: 7.9.0
Update Channel: dev
OS Platform: Microsoft Windows
OS Release: 10.0.15063
OS Architecture: x64
@Cavadus this will be fixed in version 0.21.x
+1. Couldn't today. When I created a folder in Other Bookmarks, I could move bookmarks to that folder.
Brave: 0.19.80
rev: 7d07299a5d462d3c9ae32cfbfbe7296cc57c89b9
Muon: 4.5.13
libchromiumcontent: 62.0.3202.75
V8: 6.2.414.36
Node.js: 7.9.0
Update Channel: Release
OS Platform: Linux
OS Release: 4.13.0-17-generic
OS Architecture: x64
@jamesray1 this was fixed in 0.20 version, so in the next major release
@NejcZdovc should this work when moving a folder to 'Other Bookmarks' (see https://github.com/brave/browser-laptop/issues/10157#issuecomment-318444002)? Because right now the folder you move disappears from Bookmark Manager but stays on the Toolbar:

cc @kjozwiak @srirambv
yes it should work
can you please open new issue for this one, because steps are not the same as a main issue
issue created #12378