I ran into a problem with model 40 after the R42 patch, where I used my yellow recharge ability.
When it triggered and gave me the AP, I wasn’t able to use any attacks (in this case Storm’s Wind Storm).
At least not in that same turn.
Noted and in the queue for a fix. This one is going to need a client side code fix though, so it would be with R43 at earliest, assuming that one isn’t fully locked down yet.