Continually getting a Black Screen in Win 10 on M1 Mac

Using Parallels 16.5.1 and Mac OS 11.4 with M1 chip.

This product is unusable in this configuration. I get black screens and lockups every 10 minutes.

 

Dear support team, since I upgraded Parallels on the M1 (Macbook Pro, 8GB ram) to v16.5.1, the performance dropped down to a point where it became unusable.
Locks up are constant on 3D graphics applications, so are occasional black screens or black windows.
Windows 10 insiders is the Guest OS as well.
I'd like to rollback to the previous version, is there any way to download a preview version of Parallels ?