I’ve solved the problem and for those with the same problems, here is what I’ve done. I don’t understand why it’s working, but yeh, no problems anymore.
Because of this error I can’t even duplicate my map, I’ve done this.
Open the level with the problems and go to Level BP. There select Class Settings and in the right at Class options, check Generate abstract class. Complie and Save. After that you can duplicate your map.
Open your new map and go again in Level BP and uncheck Generate abstract class. After that you can delete the old map and now my new map doesn’t trigger the event begin play twice.
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