I don’t think I’m filtering but I certainly could be missing something. I’ve tried turning all filters off and looking for different ratings, re-importing.
Today I installed Digikam to give it a whirl and the missing images didn’t turn up when the import happened. Maybe they really are gone somehow.
I’m going to try a different workflow where I export a copy of the raw file to another folder. It’ll take up some space but that’s OK.
In general, when I’m in digiKam, I open my RAW files in RawTherapee. I’ve personally never tried out Lighttable, though.
That usually doesn’t do much as if you do, all your library, settings etc. are preserved in your config folder.
You could always just rename your config folder to make dt create a new one. If dt was set to write xmp files (sidecars) you will still have your edits when you re-import them.
I’m going to stick with DT so I processed those missing images again. I must have deleted them somehow. Oh well.