windows 10 1909 host with windows 10 2004 guest - guestaddition installed - 3d enabled fails

[xhums1]

hi, So everything worked just fine until my guest windows 10 upgraded from 1909 to 2004 Immediately 3D failed, so I had to disable it. I tried to reinstall guest addition, did not work, I updated the nvidia driver just in case to the latest 457 version. If I disable 3D all is fine, if I enable it I get this:

1. windows hangs on black screen after the windows logo
2. after 2 min it starts but with low resolution and I can only change to a max of 1600xsomething
3. after some minutes it crashes with a memory read fail

Please help me identify what is wrong

At first I had the transparency problem and I fix that by disabling the transparency on the guest windows Hiper-v is disabled on windows host

[xhums1]

vbox.log and vboxhardeining.log from the failed start with 3d enabled

[Klaus Espenlaub]

Duplicate of #19365.