Not a lot to go on with this, but, it's 100% repeatable. I've submitted several crash reports, the most recent of which is 410250682. Linux guest VMs are running fine, but, Windows 10 simply vanishes from running and Parallels automatically wants to send a crash report. It may not be related, but, the crashes seem to happen when Windows 10 is logged in, and not the active/front window. I use Spaces a lot (I do not use Stage Manager), and all of the crashes were when I was not on the desktop with Parallels running. I've tried repeated reboots, doesn't seem to help. Release version of Ventura, and the most recent Parallels Desktop 18 for macOS.