Major bug for warlocks (or is it just my character?)

[Atheista]

Since yesterday (09.07.2015), while trying to summon Hakkar (which buggs out and can't be summoned or defeated as he despawns), whenever I summon my voidwalker and it has to perform an attack, it simply auto-casts Sacrifice and I'm left all alone and lonely.
Please advise and/or fix this issue as I can't really play my character anymore.

Thank you

[Pottu]

Have you deleted the WDB folder inside your installation? That gets rid of the game cache, which should flush the pet states and get rid of this problem.