Haven’t forgotten. Just busy internally. This code works in at least two of our internal projects. I’m engaging our support team to see if they can help repro this with a sample project.
The module is part of a plugin, so it is important that the .uplugin and .uproject setup are correct. Then including the module reference inside your top level game .build.cs file should be no big deal.
Other than debugging UnrealBuildTool.exe and putting a breakpoint inside the error that triggers, I’m not sure what the issue is at this point.
You can find the command line run in the build tool log files, or the NMake settings of Visual Studio.