Because 'Sirmate's helpdesk' (sirmate's Helpdesk - Request your actions and hotkeys here!) it is still closed I decided to write about it here.
I found a bug in Sirmate's exori hotkey (exori hotkey).
In previous version of exori hotkey I didn't found this bug.
So, sometimes when character have target, and ibot should cast spells, hotkey stops working.
Ibot won't cast any spells until character will kill this one target using only melee.
When character will focus (choose) next target (after kill the first one - during killing time didnt use spells), ibot is casting spells as it should.
This occurs from time to time.
If u have any idea how to fix it just drop msg in this thread.