The Necromancy of Thay can put you into an endless loop of combat with nothing once picked up.

I've tried reloading about a dozen times; disarmed the gargoyles before-hand; leaving them armed before picking the book up; etc. Nothing is helping this bug and I can't advance that quest whatsoever now. There are no enemies present and skipping character turns just loops into an endless loop. Not sure if anyone else has encountered this issue.