NPC Spawn Issue: Pendle Dashinger bugged?

[Izmael]

I casted Beguile on him about 15 times in a row on a level 30 enchanter, he outright resisted all of them.

Also resisted every mez attempts with level 4 mez spell - about 8 total.

A couple roots stuck and tash stuck as well.


Has he been made charm/mez immune or just a temporary bug?

I actually charmed him just fine to kill Targishin earlier today and the server hasn't been reset since then.