No Party UI
While this is a different problem you may want to consider trying what another Mac user suggested in this thread:
https://forum-en.gw2archive.eu/forum/support/mac/First-launching-issue-HELP/first#post2046259
I was going to copy and paste it for you but I didin’t want to accidentally clip something out that was important.
If you find a solution please consider coming back and letting us know how you fixed it. Some of us are keeping kind of an unofficial collections of solutions Mac users come up with so we can share them with others. I guess it is up to us as we seem to kind of be on our own in the “Mac Beta Client Tech Support Forum”.
I will do that. Granted, the Party UI bug seems to be game wide and not limited to Mac. Seems a lot more people have been experiencing it with the recent server issue that they had yesterday. But if I find any fixes that work via the mac, I’ll post it.
Right now people have used the ~repair function on PC, as well as re-installs of the game. But they have been temp fixes, and it has been reported that the problem comes back after a few times playing. So seems that Anet has a much larger problem on their hands that is getting larger and larger