Level is taking too long to end

So… I’m having a very weird issue that I’m working on a game which has been getting more graphically heavy and whatnot, and it does take a while to load… but it actually is going fine.

Then when I stop the test it takes two minutes for the editor to run again, and there’s nothing in the logs that clues me as to what’s happening. Anyone has any idea as to what could be going on, where to check and maybe how to avoid this?