Object Stack Extension causes strange issues

In my game I have multiple scenes. In the first scene I am using an object with the object stack behavior. When using the “Pause and go to scene” event the next scene has some major issues such as animations for my character not running smoothly, slowed down framerate for some actions taken by the player, infinitely spawning enemies that are on a “repeat every X for X times” event.

The strange thing is that I was able to fix this by having an empty object and just putting the object stack behavior on it.

Not sure if it’s a bug or not but from a lot of testing and trying to figure out the problem it seems as though the object stack extension was the only issue.