ZFS mounts not active after upgrade/reboot from 18.04

[Brendan_P]

No ZFS pools on upgrade/reboot.
zfs import -f XXXXXX worked.

But no mounts available after reboot.
Additionally, no exports seem to be visible via NFS/SMB.

CAN manually mount sudo zfs mount -a and then mounts are accessible on server, but no shared exports.

Output of grep zfs /var/log/syslog attached.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.19
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
Date: Fri Jul 10 15:51:34 2020
InstallationDate: Installed on 2019-07-12 (363 days ago)
InstallationMedia: Ubuntu-Server 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to focal on 2020-07-09 (0 days ago)
VarLogDistupgradeXorgFixuplog:
 INFO:root:/usr/bin/do-release-upgrade running
 INFO:root:No xorg.conf, exiting

[Brendan_P (brendan-p)]

Mounts now available after boot including NFS and SMB shares. This seems to have auto-magically solved itself.

[Brendan_P (brendan-p)]

And after a reboot, all mounts no longer available. So issue still persistent.

[Brendan_P (brendan-p)]

Just to note this issue is resolved for me after a clean install due to other issues.