Unity freezes when importing texture from .fbx

Hi, hoping someone could help here.

Everytime I go to the Inspector to try and import the textures/ materials from the assets given, Unity freezes at about 90% import. Once I force quit the program and boot it back up, the textures have been imported, but any objects I had put into the scene are deleted and I have to replace them. I've tried restarting my computer, beginning with a new file, etc. but it still freezes. Any help would be appreciated!

This is what Unity looks like when this happens:

 

If i see this correctly, the version you are using is a 2019... a... version. This implies its an alpha version. Truly unstable. From my own experiences all of the 2019 versions are pretty buggy atm. I would highly recommend switching to an LTS (Long Term Support) version. Good luck.

 

Thanks. I assumed the latest released would be the most up to date. What's the most recent LTS version that you would recommend?

 

2018.4 is the most current LTS available. its what i'm using, its ok.