Photo Mechanic Plus Version 6.0, build 7086 (7751091)
macOS 13.6.3
I was using the Browse tab to look through my list of keywords. At first, the list would appear in alphabetical order as expected. As I was working, the list suddenly changed. It was still alphabetical, sort of, but now all the keywords beginning with a capital letter were grouped together first, followed by a group of keywords not capitalized.
From this (the correct way, I would assume):
Axxxx
bxxxx
Cxxxx
dxxxx
Exxxx
fxxxx
It would switch to this:
Axxxx
Cxxxx
Exxxx
bxxxx
dxxxx
fxxxx
It kept switching back and forth multiple times while I was working, and it seemed pretty random. I didn't notice that I was doing anything in particular when it switched.
Of course this makes it very difficult because when it switches, the keyword you were working with suddenly moves to a different part of the list, and given how long these lists can be, it takes a while to find it again.