[Bug 52810] New: Applications are unable to locate some files, but not others, while Wine file explorer can locate them (tested with MusicBee and ToDoList)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52810

            Bug ID: 52810
           Summary: Applications are unable to locate some files, but not
                    others, while Wine file explorer can locate them
                    (tested with MusicBee and ToDoList)
           Product: Wine
           Version: 7.6
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: devtarc at gmail.com
      Distribution: Ubuntu

OS: Xubuntu 20.04.4 LTS (64-bit)

I'm using MusicBee and AbstractSpoon's ToDoList using Wine, each in their own
Wine prefix. Both prefixes are 32-bit and are in the Xubuntu partition and were
not created using root. The ToDoList reads files from the partition Xubuntu is
installed in (ext4), and MusicBee reads from an NTFS partition.

Both run really well, but sometimes they are unable to find some files. For
MusicBee, they are some song files (mostly mp3 I think), and for ToDoList, some
todo list files (.tdl). All of those files are stored outside of the Wine
prefix. For MusicBee, they are symlinked into it to preserve database
structure.

There is no apparent pattern on the files that could explain why some can't be
loaded and others can't. Everytime this happens, it's always the same files
that can't be located. However, Wine's files explorer is able to locate them.
I'm also able to access them both through Xubuntu and Windows.

Also, I'm not really sure what is triggering it. It tends to be like this from
boot, but doesn't happen all the time. Lately it seems to have been triggered
by rebooting, but it could be something from 7.6, as I have rebooted Xubuntu
many times while trying to fix this and many of those times it worked correctly
afterwards.

Things I have tried:
- Changing mount permissions for the NTFS partition
- Adding more libraries/DLLs to the MusicBee prefix
- Changing permissions for the music library folder while in Windows
- Manually locating the missing files using the Wine file explorer
- Watching for the console output (didn't seem to have anything major)
- Using WINEDEBUG (couldn't see anything obvious and I'm not really experienced
with it)

I tried it mostly with MusicBee because it's the one I use the most.

Both MusicBee and ToDoList handle missing files nicely, so no crash log.

I did a clean install of Xubuntu March 20th and this has been happening since
then. Tested it with Wine stable (7.0) as well as Wine devel (7.4, 7.5 and
7.6).

Before that I had been using Ubuntu 18.04 since early 2020 and they were
working correctly. I don't remember the Wine version, but it was either devel
or staging.

The MusicBee forums has a thread on running it on Wine and they haven't
reported this kind of problem, so I feel it may have something to do with the
Xubuntu version and/or Xfce, especially considering that it was working
correctly under vanilla Ubuntu 18.04 (and also vanilla Ubuntu 16.04 before
that). However, I haven't found any similar problems when searching with Google
or in the bug tracker.

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