@Twa_Hinkle thanks for testing. I implemented Ken’s suggestion and pushed an update to that PR. It should complete build in about half an hour and be ready for test again.
Edit: The error does not have to do with QT or .NET. We started using that lib recently to detect the current display hardware, as part of a larger “detect CPU and graphics card” library. However we don’t use Win7 internally and don’t have it in any of our test rigs. We’re willing to support it if it isn’t too much effort, but end-of-life for Win7 is coming soon (Jan 2020, I think) from MicroSoft.