In ICC last night we were on Saurfang, and normally when we BL I blow all my cooldowns and then I would cast Invis to not have threat when the Mirror Images went down. Pre-4.0 I used to be able to do this. After 4.0 if I were to Invis with the MI up I wouldn't lose any threat. Last night I waited till Saurfang charged at me for like a second and popped Invis. Then when I removed the invis aura after like 3 seconds I still had all the threat I had from before.
So I ask, did I just miss the part where it no longer erases threat, or is it some bug?
Anyone else having any issues with invis?