Hey NHouse-
If you’re using the engine from the launcher then the GenerateProjectFiles.bat won’t apply as that is used in relation to source built engines. Please try clicking on the dropdown arrow next to the engine version in the launcher and choose the Verify option to ensure all the engine files are setup properly. If you’re not seeing the option for Generate Visual Studio project files in the .uproject’s right click menu, please try right clicking and selecting the Open With… option. Here you should find available programs to open the file with. Try switching to the Unreal Engine - EpicGames, Inc. (blue icon) and see if the project can be compiled/opened then.