All my custom actions are gone - only default actions show

This morning when I started Photoshop all my actions were suddenly gone. In the action panel there is only a group called “default actions”. I used it yesterday and my actions were all there. When checking in Creative Cloud Desktop it says I updated to Photoshop v27.5 21 days ago - so that cannot be the explanation. 

I have searched my desktop and there are no atn-files later than the backup I created a week ago (and I have made important changes since then).

Can anyone explain what may have happened and if there is anything I can do in order to get my Actions back (as they were per yesterday, not the older backup)?

Yesterday I installed Premiere and worked a bit with it (it crashed), but cannot see how that would affect my Photoshop actions.