EQ2 Zone:Ssrez'Ras: Chamber of Stasis (Advanced Solo)  

1st mob : Deviator Yothsra

I tanked him at corner of pillar, cause his summon storm KBed and killed me in air.
When he cast storm, I wedged against pillar really tight, snake went immune and kept casting storms trying to flux me.
I waited and waited for him to be out of immune. But nothing happened.

I even got out and ran around. He just stuck there, immune, kept casting storm ignored me.
is it bug?

I had to zone out and back. he's back in center full health. -_-