Filebot Flatpak

Try as I might I cannot get Filebot to work correctly in Salix Linux (based on Slackware). I installed the Flatpak and Filebot opens, but as soon as I select the file opener there is a spinning disk logo and the app locks up. So I tried opening via the file manager, Thunar but wouldn’t cooperate. I gave this behaviour some thought and decided perhaps some Java component was missing, so I loaded up every Java file in the Salix repos, but again no success. Baffled.

I usually just drag and drop files into it.

But might just be, that salix doesn’t correctly implement the portal / you have nothing installed to handle portal requests

Thanks. The other weird issue is that the /mnt directory doesn’t appear on the files list (the folder list opens quite correctly, whereas the files list does not). All my drives are mounted in the /mnt directory and are listed in the fstab as such.