Thank you for your response @Pioneer. The application (mBlock) program crashing however does not seem like a USB related problem to me. I have previously installed the mBot USB drivers, and have been successful communicating with the mBot both over cable and 2.4GHz link. I do not think there is a USB problem.
As I mentioned in my last post, mBlock can be made to crash all the time if power is interrupted to the mBot while a program is operating, and mBot is operating wirelessly at 2.4GHz. This is something I think you should easily be able to repeat and confirm. I believe it is a common situation where users/students would accidentally turn off mBot power without first stopping a program. Once mBlock stops responding, a Force Quit is the only way to terminate the program.
(I did however reinstall the CH340/341 mBot drivers per the link you sent … there is no change).