This happened to me in both gauntlet and coop raid mode on three different heroes.
Savage: bronze skill was not charging at all
Gammond: bronze skill was charging erratically
Oro: bronze skill did not charge at all for one whole raid but worked fine in others
Seems to be a bronze skill only thing but happens across multiple game modes. Thankfully, this has not happened to me in pvp cuz that would suck.
Not sure if this is the proper place to put this so of not let m know please, but when I try and get free gold by downloading other games and meeting requirements it isn’t allowing me to collect the gold. Maybe I’m not doing something correctly. Some assistance would be awesome.