The UltraEngine editor fails to find and run my application when I try to use its Game/Run (F5) option. This is the case even if I have compiled it using VS directly. I looked to see if there was a configuration option to set the project location but I couldn't find one. I don't know if this is helpful information, but I don't want my documents/source on drive C: and/or OneDrive, so my project is on path on an E: drive, which is an large external portable USB drive.
RESOLVED: I failed to build in release mode, so Run failed, because that version of the EXE didn't exist. I should have used Debug.
3Dski7059's post in Project Won't Run From Editor was marked as the answer