Guild Wars 2

Here is the fix courtesy Useless Tactics. Worked perfectly.

https://forum-en.gw2archive.eu/forum/support/mac/Gray-Screen-Solution

Open Finder
On the menu bar, look under “Go”, hold the alt/option key, select the folder that appears (“Library”)
Open the “Application Support” folder
Move the Guild Wars 2 folder to the desktop (just in case)
Start up Guild Wars 2, it will create a new Guild Wars 2 folder again

Northern Shiverpeaks, obviously. ;-)