I am unable to figure out what changed, but something did. Maybe the casetta hub updates automatically. I do not think this corresponded to a HA update.
Something changed recently thought. The Pico Paddles (and only the paddles, PJ2-1P-GXX) which previously had automations defined based on a trigger definition have now changed to “unknown” and do not work.
The issue is here:
Notice the “Unknown trigger”. When it was defined, it showed something else (I don’t recall precisely what). In my case I am changing it now to “On” Pressed. Then it works. Whatever I had there before has become undefined.
It is true for every paddle pico I have. It is not true for the 5 button ones, those seem OK.
I wish I could say “this was when X updated” but I cannot.
But if your light switches stop working, consider this first.
Linwood