XnView Flatpak crashing when moving files

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1

Is anyone else using the picture manager XnView (flatpak version)?

I use it since 20 years to organise my photo archive, mainly on Windows but also on my Manjaro and my Fedora installation. In both I have to utilize the Flatpak version, since its not in the official repos.

Just now I had the problem (latest flatpak version from March 16), when moving an image in the folder structure (mouse drag and drop, 1 file), XnView was crashing / not responding in the windows windows bar.
journalctl confirmed the process was crashing after moving the file.
The GUI didnt show that the file was moved, it froze with the file still selected, but in Krusader I could confirm that the file was indeed moved to the new location and not being anymore on the old place.

the only other interesting detail with that process ID I could find was the line “Thumbnail crack” 100s of times.

I reconfimed on my Fedora installation that its indeed the XnView flatpak itself causing the problem, and not a Manjaro related setting / user rights configuration or similar.

What I would like to know before contacting the author: Is anyone else able to reproduce that behaviour. Is maybe someone more capable then me able to close in on the cause/related environment parameter, or can point me in the direction how I can find out more about what happens on the filesystem or process level?

I did so far
journalctl --since “5 minutes ago”
journalctl _PID=XXXXX

and I may add, I have googled and also checked in the XNView Forum If I find some related information, with no success on the current issue (some other Thumbnail, mainly video thumbnail, related crash reports an Windows, some other freeze reports)

2

I don’t do Flatpaks. The AUR version of xnViewMP works fine.

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3

I have no clue, but it also has an official appimage version on the website. Just saying in case you want to test it too.

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4

Thank you, Teo, for reminding me about that one! This was so helpful!

I was torturing my brain how I worked with XnView on my old Dell laptop when I was travelling abroad for one year in 2023/24 and I did my complete photo work exclusively on this computer with Manjaro and XnView. I was sure I was already on Wayland.
But I havent used the flatpak, as i remember now, it was the Appimage version! Thanks again for helping me to remember it!
When I returned, I decided to move to Manjaro on a newer Dell laptop too and I chose Flatpak for having all stuff together in one package manager (Pamac).

This is important because I found in the XnView Forum a thread thats already from 2024, where they pinpointed the flatpak version problem to Wayland in contrast to running X11. And I was sure that I didnt have X11 on the old computer…