Comment 11 for bug 2041739

I was/am using version 2.12~rc1-10ubuntu4 with Ubuntu Mantic 23.10 and it was still happening. (before I recreated bpool with compatibility flags)

ZFSBootMenu looks good.

My recommendation is for grub to do some basic checking of zfs version/feature/compatibility flags before starting, so that it at least gives a useful warning/error message about which zfs flag is problematic and/or what to do about it or why it might have happened.