Everytime I try to use "Show Fonts..." (command-T) Mathematica pops up a window that says "Internal Error" (with the option of continuing or crashing). The dialog box gives the option of selecting "Crash" to send a report, but it seems Mathematica just crashes and then causes the Apple crash report dialog to appear (yes, I sent the report to Apple).
I haven't seen any other posts about this since the release of Sierra.
Has anyone else experienced this?
Thanks.