Glaive melee combo animation broken

[Winthos]

When pressing the melee input very quickly while doing the forward combo of Astral Twilight, sometimes the animation breaks and instead of continuing the stance combo, it just throws the glaive out a short distance over and over again. This doesn't appear to be an actual "held melee" throw, just the start of one of the combo animations that sort of short circuits and then just loops forever.

This happens frequently when rapidly pressing the melee input, and I believe it also affects other glaive melee stances.