Separate names with a comma.
Not sure what you mean by configuration? I've installed macOS Big Sur v11.7.1 using Parallels Desktop v18.1.0 on my 2019 16-inch MacBook Pro...
For what it's worth, this issue seems to be resolved in Parallels v18, at least for me anyway.
Any updates on this? Other users (i.e. me) are having this issue as well, so please don't DM individuals or if you do, please update this thread...