This is caused by the fact that the pools are imported before smb starts. This is easy to fix manually, before I push an update in the next release.
to fix simply follow these steps:
1. drop to bash
ovios-shell> linuxcmd
Dropping to the Linux bash shell...
ovios-indt:~ #
2. remove the current link that in rc3
ovios-indt:~ # rm /etc/rc.d/rc3.d/S22zfs
3. recreate the link with a new priority:
ln -s ../init.d/zfs-admin /etc/rc.d/rc3.d/S25zfs
At next start up the services will start before the pool is imported and the shares will be automatically recreated.