Cubase 11 pro Sampler Track crash!!100% crash! please help

Eveytime I tried to draw an audio or midi piece into the Sampler track, Cubase got crash immediately ,directly closed . even use it in an empty project ,it still crashes .
I had been able to use the Sampler Track with no problem couple months ago , during the period ,I didn’t make any change to my Cubase setting nor the PC system . My hardware weren’t change too .
My PC has 64 G memory ,WIN 10 system , MOTU M2 sound card .
I also tried to ask the Yamaha distributor for help ,and they didn’t help at all .
I checked lot of platforms, found many people got the same problem , they had no solution either .
please help this out!!

Hi and welcome to the forum,

Do you have the latest Cubase 11.0.41 installed, please?

Could you attach the crash/dmp file?