Steps to reproduce:
1: Have Shattered Aegis(Zeal V)
2: Have Aegis up on self
3: Aggro enemy, and before they strike, begin casting anything that has a cast time of any form.
4: Deal damage to enemy due to Shattered Aegis and CANCEL your skills without skills refunding cooldown.
This is especially frustrating for skills such as Renewed Focus, as using F1-F3 and then using Renewed focus practically guarantees that Renewed Focus will Cancel, going on full cooldown.
This bug will cause every single skill to cancel, including auto attacks.