I was having this issue as well. I was using the Open Level node in Blueprints, but instead of the level I specified Launch opened a test level that I had deleted before building. Play > Standalone Game resolves the issue for me.
I was having this issue as well. I was using the Open Level node in Blueprints, but instead of the level I specified Launch opened a test level that I had deleted before building. Play > Standalone Game resolves the issue for me.