Dead in Thay - using Advanced Fog of War and Dynamic Lighting makes the game unplayable

Hi all, Dead in Thay module, if dynamic lighting AND advanced fog of war are enabled, everything grinds to a halt. The browser says the page is hanging, normally it eventually loads, moving tokens causes the game to freeze. If just dynamic lighting, or just advanced fog of war are enabled, it's fine. I'm sure it's an issue with the maps, I've tried this on chrome and firefox, and I've tried loading this into a fresh campaign where it still happens without anything else modified.

Do you also have global illumination enabled on the map you are playing on?  There is an issue with the combination of global illumination and advanced fog of war being on together, so if both of those are on, choose one. 

If it does turn out to be that combo, and that was the default setting when you created the game, you should report this on the  Wizards of the Coast Bug Report Megathread . Those were all supposed to be fixed so that combo would not be on by default.

Dynamic lighting with global illumination was on by default, but not the advanced fog of war if that's what you mean?