Host: VBox 6.0.0-BETA2 + Win7 x64.
Guest1: Win7 64
After changing VISO frequently multiple times on a running VM, VM finally crashed with memory exception. VM Status = Aborted.
Moreover re-starting this VM from "Aborted" state is not possible, because it will crash again. (until I remove ad-hoc.viso Image manually via VM->Settings)
Basically when generating a VISO image there's 20% chance that it will hit a bug and cause a VM crash; Once VM crashed with buggy VISO image, it's 100% reproducible crash with the same VISO image, if I reboot VM.
UPDATE: here is a bugged VISO image, that causes VM crashes.
https://www.dropbox.com/s/fe53hcaykd868 ... .viso?dl=0