I know this is a blueprint question but with a few C++ lines you can get very precise results, see here How to check if game is running - #12 by tuatec. Maybe someone will find this useful as well, it took me quite some time to figure this out. 
I know this is a blueprint question but with a few C++ lines you can get very precise results, see here How to check if game is running - #12 by tuatec. Maybe someone will find this useful as well, it took me quite some time to figure this out.