Gwenview Navigation Menu Broke

[deleted] Does anyone have any ideas?

Sometimes when you want to uninstall something completely, you need to look for related stuff in your /home directory as well. Turn on "show hidden files" for your file manager, and check for things like .cache and .config. Often setting and configuration data are stored there, and eopkg won't delete anything from your /home directory.

Hmm.. You're right, I know there's an option to remove the package and all associated settings but I did not use that. I'll check eopkg commands and try again. Thank you for the advice! \o

I tried it my way: I removed Gwenview using sudo eopkg rm --purge gwenview, I did a reboot, I reinstalled Gwenview.
I tried it your way: I removed Gwenview using sudo eopkg rm --purge gwenview, I searched and deleted all files and folders (including the hidden ones) which contained "gwenview" in their name, I did a reboot, I reinstalled Gwenview.

Sadly the issue remains. : (

What desktop environment are you using? (Budgie, Plasma, etc)

This sounds like an upstream issue tbh. Have you checked to see if there's a bug report open for it?

Thanks for clarifying. I wasn't able to confirm the issue on Gwenview on my Plasma install. Yesterday, however, I did see the same behavior in another file chooser window. Unfortunately I don't remember which application it was in. The problem went away after dismissing that window and re-opening it.

(I think it was KWrite or Kate, but the problem is with that window type, not specific to Gwenview)
With that said, it does seem like an upstream Plasma issue.

The KDE Bug tracker is here, you can search and see if there's already an open issue for this. If you want to report a new issue, take a look at their issue reporting guidelines.

I see! I will do that! Thank you!