Can't edit picture description

This problem occurs often. The more photos in the gallery, the more often it occurs:

When I edit a picture description, or want to select 'use for directory logo', and click save, I get kicked out of setup and back to my album page, and the settings are not saved. The error log then shows this:

09/10/21 16:25:08 array_slice() expects parameter 1 to be array, null given
/home/bf7944/domains/ (Line:981)
09/10/21 16:25:08 Invalid argument supplied for foreach()
/home/bf7944/domains/ (Line:982)

Any idea what could be wrong?

do you have special

do you have special characters like german Umlaute ä,ö,ü,ß in your filenames?
I had similar problems with pictures missing. After setting the right character encoding everything works well.

No, my filenames are all

No, my filenames are all straight from the camera, nothing weird there.

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