Bitwarden Portable will not launch (Win 10)

I have 2 PCs, both Windows 10 with the latest updates. On one the portable app works fine, on the other the portable app (1.29.1) will not launch at all and provides no error message. I’ve tried older versions of the app and they all have the same issue on this PC. Any ideas on how to troubleshoot this?

The installed Desktop App works fine on this PC, it’s just the Portable that will not launch.