Parallels Big Sur BIErrorDomain error 3.

Getting the error BIErrorDomain error 3. when trying to install Bug Sur using Parallels. Happens when selecting the disk to install the upgrade during install. Any help out there?
Also getting this (installing into Parallels as well) - interested in any solution.
Actually - there is another thread on it over at https://developer.apple.com/forums/thread/649774
I'm getting the same error when try to install big sur to a external hard drive
I get the same BIDomain Error 3 when trying to install in VMware Fusion and selecting the existing virtual disk that has Catalina Beta installed
Parallels Big Sur BIErrorDomain error 3.
 
 
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