Hello John, I see two possible solutions for this issue:
1) don't install the guest utils anymore (it seems to be now natively working with the new kernel modules)
2) install the guest-utils with the guest-dkms package, so you enforce the usage of the virtualbox native kernel packages (not the kernel ones).
Both solution should work, but unfortunately looks like the two kernel modules lost the interoperability between them.
Hello John, I see two possible solutions for this issue:
1) don't install the guest utils anymore (it seems to be now natively working with the new kernel modules)
2) install the guest-utils with the guest-dkms package, so you enforce the usage of the virtualbox native kernel packages (not the kernel ones).
Both solution should work, but unfortunately looks like the two kernel modules lost the interoperability between them.