I’ve tried installing VS2015, but still didn’t work, so I’ve uninstalled it. Tested to package something else without VS2015 so worked, didn’t want to waste too much space on my SSD.
Any clues what is that about? The scene is pretty clean.
I’ve “fixed” the issue, deleted the ApplocalPrerequisitesDirectory=(This path) in the () from the DefaultGame.ini file inside the project Config folder.
Regarding your questions
Only this project, I’ve successfully build another one.