Yes, the issue is version-agnostic. Tried opening the project in both 4.11 and 4.12 and there was no difference. Haven’t tried the engine verification, so I’ll have to try that and get back to you.
When I’m next at the computer, I will send along the dxdiag info.
Checked the conflicts list. Both computers have Win10 notifications on. The one that doesn’t work (a laptop) has an integrated Intel card as well as an NVidia graphics card (doesn’t use Optimus), but I haven’t been experiencing any of the errors that are brought up in the list in association with the software I DO have.