Can't start vm after update

[sorsdt]

I have an ubuntu virtual machine with an encrypted disk on windows host. After update from 6.1.40 to 7.0.2 it does not start (there is no window where I can print my password for decryption). After downgrading to 6.1.40 I successfully started my vm.

[Klaus Espenlaub]

Could it be that you forgot to update the Oracle VM VirtualBox Extension pack to 7.0.2? Because The old extension pack for version 6.1.x is not compatible.