Virtualbox freezing on install

Just a PSA in case anybody else has the same issue. When installing HASSOS on Virtualbox, the instructions step 6 says “Then go to “Audio” and choose “Intel HD Audio” as Audio Controller.”. When I did this, after starting the VM, either the boot sequence would freeze, or if it did work, a second boot would freeze. It was killing the whole Virtualbox environment, requiring a restart of the physical machine. It works fine if I leave the audio controller as “ICH AC97”. I’m possibly missing drivers or something, but since I’ve been running HA that way for years, I will leave as is.