Did 3 runs and hit damage cap without issue (no charges from teammates, but still gaining up to 12 within the fight)
Go in a 4th time and literally cannot gain charges
Shield Smasher tac - full ramp (5 Armor Breaks) and complete multiple prompts in quick succession.. never gain charges
https://youtu.be/DAKaS6d6bcU?si=iL_-dcU5rWghbi44