Hello!
A few days ago I purchased a new monitor (Mi Curved Gaming Monitor 34") and I have stumbled upon a weird interaction with G-sync and the game interface:
If I have G-sync enabled, whenever I open an interface panel (map, bags, character sheet) I get a brief flicker/flash all over the screen. It is very faint, but enough to be noticeable. It also appears to cause a brief stutter, as I consistently lose 4-5 fps whenever it happens.
If I disable G-sync, this problem goes away. Now, obviously I don’t want to do that since I spent a lot of money on this monitor, and I am loving the way the game feels with G-sync enabled in general. It also works extremely well 80% of the time, it’s just this weird interaction with the interface in WoW that makes it rough.
I have been googling for 2 days now and have tried multiple fixes, but none of them are working. I would greatly appreciate any help to get this resolved 
Some of the things I have tried:
- Using CRU to edit the Freesync range
- Disable all addons
- Delete the cache
- Disable any program with a game overlay
- Lower graphics settings
- Reinstall drivers
I am not very tech savvy, so please let me know if there is any information I have left out!
Thank you 
specs:
Intel Core i5 9600K 3.7 GHz 9MB
MSI GeForce GTX 1070 8GB ARMOR
16GB RAM