Mac client does not run at all

[Avenger]

I ran into a similar “black screen” problem this week with the latest update. What fixed it was Config>Reset System Settings (which helpfully does actually say “this option is recommended when the game fails to launch.”)

Note that this does delete your UI, hotbar, macro and gear sets so you will probably want to back them up beforehand using Config>Back Up.

In my case I had a server side backup but when I restored it it was somehow deleted, so having a local backup is also good. I also had screenshots of my hotbars and old macros, but just ended up making new ones from scratch.