Upgraded from 16.x to 17.x

A new Ubuntu Server 22.04LTS VM I created yesterday under 16.x will not boot once GRUB asks to start.

My Windows 10 and 11 VM's will not start and give me Windows MBR type errors where it can't start windows and fails to find Windows to start.

Downgraded back to 16.x. While my Ubuntu could start, my Windows VM's still wouldn't start. I had to restore from backups to get to work.

I do know people have been having problems with editing the VM settings, but in my case I've not touched the settings between running 16.x and upgrading to 17.x.

This is NOT a good start.