enchanter mezz duration
 

Cast rapture. It stuck, but it broke like 10 seconds later. This is a 45 second mezz

Also Mezzed a mob in Plane of Mischief, and it despawned

I found that memblurring the little pansies in the forest of PoM caused them to despawn, and assumed it was because without aggro, they no longer exist. Perhaps Mez worked the same in that situation?

the mob respanwed because it dissapears when agro is wiped AS INTENDED. That mob however is NOT supposed to see invis. This is a known glitch by now I hope.