There's multiple bugs on this encounter. Canisters not working,cola not registering, and abilities locking up. Just fix the damn thing. Play the encounter Devs, so you can see the BS players are going through.
I know health barrels also don't re spawn and disappear when placed in the room with boss but im betting this may be intentional.
hmmm i havent had much of an issue with bane....... Might be because i pvp a lot. You need to take these fight like a 1v1 lair battle or better yet a 1v1 legends
Bane has bad pvp mechanics, his lunge registers as both a range attack and a lunge, what hits depends on luck... more often then not it seems to be a range attack for me so i just don't block at all.