My ability doesn’t work in the hivebuster campaign?

My ability doesn’t work. It prompts to hit the right stick but nothing happens. I can use the AIs abilities though. Does anybody know how to fix it?

Try clicking RB + LB at the same time.

It worked thank you! Idk why it prompts the right stick

Yeah, not sure either. In Horde, Y normally activates your special unless you switch to Alternate control scheme. That’ll move it to RB + LB.