Hello,
I noticed a strange behaviour after updating to 2.2.5. I updated short before Christmas. Today was the first day working with Photoshop again, and my Action Panel was completely reset to "default". Thankfully I could back up the "Actions Palette.psp" from a time machine snapshot.
I could reproduce this issue, upon loading PS the action palette was reset to default again. I disabled AB2, started PS, quit PS. Then enabled AB2 again. Restored "Actions Palette.psp" from a time machine snapshot again and started PS again. The actions were all back, nothing was reset.
Lastest MacOS, latest CC apps, I'm also part of the beta for CR2 (in case that's a clue).