Engine Crashes When Using Imported Assets

Every time i try to bring a tree from the kite demo into a scene, the engine stops functioning. it stalls on the loading bar that tells you that it is bringing it in. I’ve left it go for 20 minutes before and nothing. When I check my task manager, it says that the engine is not responding. In hopes that upgrading to 4.18 from 4.15 will help with it, but I have never had this problem in the past when trying to use imported assets.

I see there has never been a response to this old post. Did this ever get resolved? I am having the exact same issue in version 4.24. I can import the asset but as soon as i try to use it the Engine crashes.