Coliseum - DRYAX T7 can't be finished - HP Frozen

Kill one of the dryax on tier 6 and the encounter is at 37%. Get the other dryax down to red and encounter is still at 37% with my whole team alive each doing 1 damage. 

Retried with just basic attacks and same thing, but stuck at 35%.

Got stuck at 28% 

Same for me

Level 5 Dryax Coliseum Battle: 1st Dryax defeated and remaining Dryax on last bar of health using my Lvl 59 Toons but Total Health of the Dryax pair is 36%???

All further attacks are only doing 1-3 points if damage and cannot advance past 36% enemy health. 

Thanks for looking into this bug, and hopefully fixing

Same here 

Same for me. Stuck at 28%

Yes, same for me. 

Stuck at 28% as well.

same for me, 36% and it bugs. the battle continue but the pourcentage is freeze.

Same for me. 36%. And then, -1, -1, -1…