I'm playing on a macbook air (latest version of sierra OSx).
Each time I login, I get a wow error and the screen freezes for a few seconds when a spell with a slow effect lands on an enemy (frostbolt / nova / cone of cold etc.)
It only ever happens on the first cast and then not again until I close wow and reopen. My wow is stable otherwise. i get the wow error on boats but that's a well documented problem for mac users, otherwise no problems.
Anyone having a similar problem and/or know a solution?
I've tried deleting WTF and WDB folders, no change.
Thanks!