Game Mechanics: Can't cast after being stunned by mobs.

[Droxx]

This is kind of hard to explain, but if you cast too soon after stun wears off of you, you can't cast for usually ~10 seconds afterwards. I notice this mainly in PoSky, because it's full of stunning mobs.

Situation:
Mob stuns me.
Stun wears off, while I'm spamming my next spell.
If I cast too soon, I'm silenced for ~10 seconds. Casting a spell greys the spell gems for a tenth of a second, but they reset and wont cast.
If you wait a second or so after stun wears off, you can cast like normal.

Anyone else had this issue?