Charged Attack not registering in GBL I’ve burned two shield off Altaria, hit it with the Blizzard and nothing happened, yet a second after a Sky Attack erased me.

Also a Frenzy Plant not doing any damage on 8-10HP Registeel, so Flash Cannon right after killed half of it off and basically made me lose, as I was so far ahead. 

How is this even possible? So frustrating especially since I’ve never had the opposite happen to me just my pokemon not getting the attacks through... in both situations my opponent was already without any shields.