Blueprint no longer being started?

Hey guys :slight_smile:
So basically I’m totally confused.
I have 2 levels; let’s call them Lvl1 and Lvl2.
Lvl1 and Lvl2 use kinda the same Level-Blueprint. They have the exact same “Event BeginPlay” looking like in my screenshot.


However, after several creations of Widget Blueprints, playing around, the “Event BeginPlay” in Lvl1 does absolutly nothing. In fact, I also added a “Press Esc to close the game”, and it does nothing either. Like, half an hour ago, before I played around creating widget blueprints, Lvl1 worked perfectly fine without any problems. Lvl2, however, works as normal.
So, my question is: Is there a way to accidently deactivating calling a blueprint? I mean, I changed the “Event BeginPlay” to only print out “hello”, but even that is not working at all. It seems the whole levelblueprint does not react. I compared the class settings. class defaults and various other stuff of lvl1 and lvl2 and everything is the same - except Lvl1 does not do a thing. 0o
The widget blueprints I created are all just “show buttons, show texts, open a level” - Maybe it has something to do with that? But even if I sartet lvl1 as/in lvl1, without a Menu or anything else, it just does nothing. And, like I said, it worked like half an hour ago.
I’d be very happy to get responses. If you need screens of the widgets or anything else, please tell me.
Thanls a lot in advance!

Okay, maybe that’s an important edit:
It DOES work, if I start it as “Selected Viewpoint”. If I start it as “standalone game”, it does not react.