This is with the latest Windows 10 Prezi Next 1.31 Desktop app (Build 8, 64 bit)
I was loading a Prezi and received an error message about loading fonts. It suggested to check my internet connection. My internet connection is fine. There was no other steps in the error message to address the problem so I clicked OK. Then I got this message box which is completely blank!
I then tried to close Prezi, but it became stuck so I had to use Windows to force close the application. When I restarted Prezi and reopened the same Prezi it worked fine.
These same steps have happened for a few years and keep hoping it would be fixed.