Hi,
I’m not sure, but it may solve your issue.
Regenerate your project solution, open it. On Visual Studio define your game as project initialization by right clicking on your game solution in the solution explore.
I’ve got something similar and I’ve solved in this way.
You may found something like this, the UE5 solution is the default.
So after you define your game as default initialization, it gets bold.
May that help you, bye!