Sometimes when I try to do the Defensive Assist Follow-Up with Yuzuha, it fails. Like, I press the switch button during the orange flash, she comes out, parries the attack, I wait for the flash to do her enhanced counter, press attack and... nothing. She doesn't do her enhanced follow-up, she doesn't do her uncharged follow-up, she doesn't start the basic attack chain, she just stands there.
Has anyone encountered this issue? Is it a known bug?