Why does my unreal engine engine keep crashing when i try to import a folder?

Every time I try to import a folder containing my character models my engine crashes. I don’t know why it does that but every single time I try it crashes. Can anybody tell me why it does that? the first time I tried it worked half way and then crashed. Any help is appreciated!

hm… well…

Dont import folders, just import the files.

Is that really the only way? ■■■■ that’ll take forever well thanks for answering I really appreciate it !