Running Solus Gnome, by default Nautilus doesn't preview krita (.kra) images. This fix worked since last year, but this week I noticed my .kra-files are not previewing in Nautilus anymore even though I have in /usr/share/thumbnailers/kra.thumbnailer:
[Thumbnailer Entry]
TryExec=unzip
Exec=sh -c "unzip -p \"%i\" preview.png > %o"
MimeType=application/x-krita;
Anybody having any insights how to fix this?