Make a proper save first to reload from and then test it.
I could not reproduce it, I did notice however that abilities become "already activated" in the exact moment they are being used(when the animation is ending), and most of the time it just flashes but sometimes it lasts longer, so I'm guessing that's when they get stuck. I also found something very curious, one figurine I bought has one activated ability, the first time I used the figurine, the ability was already stuck on activated, maybe it shares the same object with the enemies and it might have stuck when I fought one.