Anyone has experienced glitches while running VM fusion on external SSD?

Hi,

I was running VM fusion on external SSD(860 evo samsung with type C to type C).  Glitches always happen when I try to shutdown my ubuntu in VM fusion( no matter I "sudo shutdown" or jest directly click shutdown button in VM fusion).  I have to reboot my MacBook to solve this problem.I hope someone to tell me how to solve this problem.

Many thanks,

hrz01