The checkmark is not shown in the mac The checkmark is not shown is the os, I don't know what is going on with this bug? I'm on the newest public beta, but the steady version still has the problem, I updated from steady version to this one. Anyone can show me where the symbol file is?
It's a common error and it's happening sometimes after a font modified or new font installed or for other reasons.

You need to clear and rebuild the Font Database and Font Cache. To do this follow the steps below:


Open Terminal
Copy-Paste this sudo atsutil databases -remove and hit Enter
Reboot your mac


Source