Aku'mai bugged/can't be killed

Carrying some friends through BFD, reset Aku’mai twice and he is just stuck in dark protection (all damage taken reduced by 99%) anyone else try since the update?

Yep in there right now. At first i thought it was because I pushed him WAY past 50% during a breath so i hearthed and went back and made sure i pushed him NOT in a breath and the whole animation happened but still bugged in that 99% damage reduction phase.

Not sure if they hotfixed it but this morning i went back and slow dps until after the breath. he transitioned at 50.2% and i completely stopped dps. His transition was faster and he was attackable again after. Hope this helps!