There is also an issue with the font panel in Mathematica 11 under macOS Sierra. If you access the panel (Show Fonts), Mathematica 11.0 crashes. The beta (11.0.1) that fixes the graphics issue has that menu item dimmed out. According to tech support, this is a non-trivial problem. (The public beta for macOS Sierra does not fix the problem.)

If you need this functionality, I would hold off upgrading to macOS Sierra until this problem is resolved. Unfortunately, I already upgraded both my macs. Fortunately, I won't be needing to create new style sheets, etc. for a while.

This issue seems to be resolved with beta release 11.0.1.0 on macOS 10.12 Sierra. I was one of several people that reported the previous flickering desktop issue on 2016 MacBook and so received the pre-release version to test.

So for those of us who still haven't upgraded to Sierra, the recommendation is to wait until M 11.0.1 comes out? Is there an estimated release date?

So far this discussion has been specifically about M11.0.0. What about earlier versions? Do they work on Sierra? Do people experience the two main issues: (1) Graphics3D problems (2) crash when invoking the font selector?

I'm particularly interested in v9.0.1, 10.0, 10.3.1 and 10.4.1.

Any serious breakage in these versions (such as Graphics3D crash with no workaround—the font selector I can live without) would be a dealbreaker for me, and I wouldn't upgrade to Sierra at all.

Just downloaded and installed Mathematica 11.0.1.

The issue rendering graphics appears to be fixed. The problem with the font panel has not -- although the menu item is now dimmed out. (You can still cause a crash by clicking on the Font button in the formatting toolbar if you are using it.

Apparently, the problem with the font panel is due to changes with the Apple API, so it may take a while to resolve.

Does the "Show Fonts" problem persist after the mac OS Sierra 10.12.1 update?

I asked first!

Wolfram Community is really in need of some bugfixing. It is very common that I receive an email about new messages, but when I go to the website, they just don't show up. This is what happened today, but I decided to respond to Murray anyway. I typed up an answer, but what actually got posted was Murray's original message.

This doesn't look good for me so I wanted to make it clear that it's a glitch of the website.

This has happened before. It really really should be fixed. The very slow loading times should also be fixed.

I hope that this time the text I actually typed gets posted. I logged in from a different browser, just in case.