See the Screenshot.
I can’t do anything withe the MG3 beta standalone or in Logic 11.1.2.
Mac Studio Sequioa 15.2,
Hit “Settings” (cogwheel @ top left corner), then select the 4th menu topic from the top, hit the bottom right button to get the default font settings back.
OMG - that simple! 
But to my credit, everything was in Arabic script, which I can’t read.
THX!
Yes…but you must have changed it to arabic since it installs with the default font. 
yes, that must have been the case, but then it was an oversight