Following this update, it has been discovered that the final swing on all swords can no longer be shield-cancelled; the player must wait until the final attack animation ends (or some underlying cooldown.) This does not include charge-attack combos. Cancelling any other swing functions as we are used to.
Intentional or not? Perhaps it may also hint towards or be a step of the 'combat changes' we were notified about early this year.
Do you mean you can no longer swing-cancel-swing-cancel-swing-cancel (like with flourshes), Or do you mean you can no longer swing-swing-swing-cancel. If it's the former, I'd say yay, sword de-buff! I'm pretty sure the latter has always been that way.