I’ve tried reinstalling Engine Prime several times and each time it keeps mangling the displayed text on almost every label displayed.
This looks like there is something wrong in Your operating system
Given it’s only happening to the Engine Prime software it can’t solely be the fault of my OS.
No, but to me it seems to be Windows7? Time to move on.
EP uses system libraries to run, if there is some inconsistency in there, then EP can have some problems. And if this is Win7 - then this can be a problem. It is no longer a supported OS by EP.