Hello, I was not able to replicate this, did this continue to occur for you? Was the mystery able to be used by Gaara, or did it just show as such?

Ahhh okay, most PvE events have their own set of rules, and will behave differently than normal, particularly events such as Ninja Exam, where it can be seen as very prevalent.

Correct, in PvP events, he operates normally, as PvP has a standardized set of rules.