MM mobs only fire the EntityTargetEvent once.
Summary
MM mobs only fire the EntityTargetEvent once. After that, it's ignored.
Steps to reproduce
Basic example: https://pastebin.com/5fqPdXYp Spawn MM mob Go into /gms to allow it to target you cancel the EntityTargetEvent, send a message to target just to confirm. Target receives 1 message, then the mob can attack the player again.
Do the same test with a vanilla mob and it works as expected.
Current behavior
MM mob can continue to attack the target. (In this case a player)
Intended correct behavior
MM mob wont target the target (In this case a player)
Server log file
Not relevant (I think)
Debug log snippet
N/A no debug info shown (Level 3)