Terra Pikachu and Powerglass Bug

Whenever I use pikachu terra’s attack it discards three energy. Once I pick my price cards, the powerglass enables the active to gain one energy back. However, in more than 5 occasions (around 20 fights) using this combo it glitches where the card is still big (even if prize is taken) and I am unable to attach an energy for powerglass feature. Am I the only one that encounters this bug? It’s a key feature in order to successfully succeed this deck (Standard Pikachu Terra/Blissey/Powerglass Deck)