DraftSight 2021 SP2 Crashing on startup

I'm running Windows 10 21H1 with the latest updates on an i5 processor with 16GB Ram. I've just installed DraftSight 2021 SP2 on top of DraftSight 2021 SP0 and rebooted. DraftSight now shows the load screen and then crashes out. No error on screen, nothing. I'm at a loss. Anyone else having this issue?

Thanks,

MJ