I just encountered a bug in invasion where an enemy violet attempted her shield roll attack but after flailing about for a few seconds trying to decide which way to go (literally just moving from left to right and back again a few times) she then just stayed floating in the air, completely un-targetable until the timer ran out.
Probably this is one of the „stitch bugs“, his slow can work against you vs heroes like violet, beast, donald. Especially if you use Kristoff with him, it even increased the slow more.
I would have said it could have just been that she was super slowed if it weren’t for the fact that she went a bit crazy at the start of the move. And when I took that first screenshot she had probably already been like that for a good 20 seconds, not moving at all.