SuperSonic VS Corrupted Cipher

How am i going to get pass it

I can't beat the fight because it keeps bugging out.

I'll try to be as nice as I can about this but I've been trying to beat Cypher in this one but sometimes he won't take damage. Is there something I'm doing wrong? Do I need to attack at the right timing? Because now I'm lost on what else to do.

I finish and that so fu***