You did not mention if Panel text also displayed and if this problem was limited to Simulator only or both Simulator and Editor. So I will assume Panel and Editor.
Open a command prompt to c:\Windows\fonts and do a directory looking for ProntoMaestro.ttf (dir Pronto*.*).
If not there, try a reinstall with an Admin account.
If it is there, confirm is Windows is setup to use Large Icons and Larger text on buttons for accessibility.
Last edited by Lyndel McGee on October 17, 2020 09:58.