How did <Shift> get turned on?

Planning on submitting a ticket, but I was curious whether anyone has seen this before when typing information into the address bar in Windows File Explorer.

TypeText “//myservername12345/fred.xlsx”

Screen capture shows //myservernamE!@#$%/fred.xlsx

It is behaving as though the shift key is being pressed midway through typing and then is released moments later.

EPF script running via EPM with Win 10 VM as SUT.

Thanks, Dave