After the latest 17.0.1 update, my Ubuntu 20.04 VM has been taking extremely long to boot up and a message stating 'random: lvm: uninitialized unrandom read (4 bytes read)' appears in the console during startup. As the message suggests, I am using lvm. A fsck check is also done at every single startup with a result of 'clean' each time.
Reinstalling parallels tools had no effect, same with installing 'haveged' as an additional entropy source.
Amazing! I had the same issue and attaching an ISO of Windows 11 ARM to my Ubuntu ARM VM is now rebooting after updating to latest updates - thank you!