I have the same problem with one of my games. It has been sent to support and being investigated. I'll post back here if it has been resolved
Maybe you added something that caused the crash bug or something like that. So try deleting the stuff that you added lately and save, if it still crashes, keep trying deleting more and save, until it does not crash.
@Laylon I contacted the support but they still asking me questions with no real solution, ping pong emails from week ago. I noticed that the crash caused because of trying to delete wake up node and position animation from node map.
If you are using the progression node or any kind of menu jump and you placed a Menu UI in between your world and Start then this is a reported and confirmed bug. You will need to remove the Menu UI or the progression node/menu jump. I reported this to support, they confirmed it and stated it is fixed in the upcoming release.
Same here so far. I have 1 world per level as its a static kind of game and I'm just going through it now deleting and seeing what the problem is with mine.
It seems there is bug related to adding a UI between Start and second world. Like I said, Support has confirmed and said it is fixed in next release. I continue working on my second world, just can't hook it up and if I need to test it I just reroute my Start directly to it for testing.