I installed Big Sur, it worked just fine on the first launch after installing, but I shut down the VM to pin a few more cores and increase the memory allocation and now when I boot back into the VM, the boot options window is shifted off to the right and I can only see one option on the display (using both TianoCore and VNC Viewer). I selected Macintosh HD as my boot device because I know it's still the second option in the row, but when I do that, it brings me to an apple logo with no loading bar and hangs indefinitely. Tried reducing it back to 2 cores and 4gb of memory, as it was originally, but I get the same result. Any idea what could be happening?
Edit: I suspect that it's an issue with QXL, when I change the drivers to Cirrus I can actually see all of the boot options, but it still hangs on the Apple logo.
Edit 2: Resolved my own issue! I did not realize that modifying the VM using the template editor would break things. I replaced the modified XML with the original XML and that fixed it.