I often find myself in the inability to perform moves, even when doing the correct form, and most of the time re-calibrating fixes it. But it's really awkward to do mid-combat, and the opponent doesn't always understand, so you get half your health bar erased for no reason. I'm also definitely not the only one to have that, I've seen a fair share of players go into T-pose out of nowhere too.

I think part of the time I may have pressed the two buttons accidentally (they're sensitive on Quest, and being under pressure doesn't help), though it seems to happen way too often to be just that. I think the game should not do any calibration when the hands are too close together, like in the middle of a move, or at least it should ask for confirmation. I'm fairly certain no person in the world has 30cm between their hands when in T-pose.