Did some additional testing. While instant skills can successfully be woven with light attacks at a little over 1s per skill / light attack, with Puncturing Sweeps this is closer to 1.3s per skill / light attack to weave consistently.

Interestingly, pressing buttons in the order Sweeps, Light Attack, Sweeps close together sometimes led to the game casting Sweeps, Sweeps, Light Attack. Obviously this then fell over when continued for longer sequences.

As a bonus bug, sometimes your character will just walk around with a magical spear outside combat.

While overall performance seems a little more stable in Greymoor, this still seems buggy and still seeing times when the game decides to interpret sweeps spam as wanting to heavy attack (when not holding down left button) or where you get stuck with the spear visual as above.

I hated whatever they changed with jabs this time around. Previously, I could light attack on the second jab and it would be fine weaving into the next. Now the timing feels way off. Half of the time, there's no light attack weave animation at all. It just looks like I'm spamming jabs.

Another PTS update but still no sign of fix or even acknowledgement here.