External file systems not accessible on Fedora Linux 34/35

[vectorm12]

Hi,

I'm trying to move my workflow from Windows 10 to Fedora but I'm struggling with an issue in XnView MP on Fedora 34/35.

The issue is that the external filesystems I've got mounted are not accessible from XnView MP. If i manually load a file using the "open with" functionality the image opens but it's in fact a duplicate file created in a different location to the actual original file.

The external file systems are mounted by the native disk manager in Fedora 34/35 and are ext4 volumes (no network shares at this point although they seem to suffer from the same issue).

I found this issue posted previously but it would seem as if it never received any replies:

viewtopic.php?f=82&t=35857&p=143537&hil ... em#p143537

From my point of view it looks as if XnView is running into permission issues since the file systems are likely mounted outside of the user space?

Any tips on what I can do to resolve this issue?

[xnview]

are you able to access local filesystem? do you have checked rights of folder's mounted?

[vectorm12]

Yes, I can access the local file system and I've checked the permissions of the mounted file systems but I cannot find an obvious reason to how the access rights differ between the local file system and the external ones.

[vectorm12]

update:

Looks as if the issue is related to the access rights set on the /run/media folder which is assigned to the root account on Fedora by default.

Unfortunaetly I'm not skilled enough to figure out what the difference in security context is between for example the Gnome Files application and XnView MP is but it would seem as if that's the root cause of the issue.