Hi ,
What are you system specs?
This could also play a factor into the asset loading in. Depending on your Ram and processor speed it can take a while for a large asset to load in. I’ve had a Million vert FBX that was 596mb that loads in with no issues. It took about 7 minutes to load in though. I personally have a pretty hefty machine here with 32gb of ram and powerful processor. In the test doc we had when I was loading it in it said it could take up to 45 minutes for that particular file to load in.
If the engine is not crashing on you it will do a hard freeze while it’s loading it in and after it finishes it will be there.
Alternatively you could do as UnrealGuy suggest and see if smaller chunks of your model can load in as well with no issue.
Thank you!
Tim