Guest Not Running after FreeBSD 11.0->11.1 Upgrade

[Wizermil]

After freebsd upgrade 11.0 to 11.1 I can't start my guest (ubuntu 16.04.2) any ideas?

iohyve list              
Guest       VMM?  Running  rcboot?  Description
backoffice  YES   NO       YES      Mon Apr  3 22:51:16 CEST 2017

it seems that grub-bhyve is not using any cpu from htop

PID USER      PRI  NI  VIRT   RES S CPU% MEM%   TIME+  Command
4052 root       20   0 33.1G  6412 S  0.0  0.0  0:00.06 grub-bhyve -m /iohyve/backoffice/device.map -r hd0,msdos1 -c /dev/nmdm0A -M 32G ioh-backoffice

and from the console a basic grub prompt

iohyve console backoffice
Starting console on backoffice...
~~. to escape console [uses cu(1) for console]
Connected
grub> 

I don't know what to do

---- UPDATE 07/27/2017: 06:14 CEST ---

I was able to boot from the grub prompt command using

set prefix=(hd0,msdos1)/grub
set root=(hd0,msdos1)
insmod linux
normal

but I have to do it for each reboot do you know if there is a way to fix it permanently?

[neponn]

Any update on this? Looks very similar to an issue I am having after upgrading from FreeNAS 10.2 to FreeNAS 11.1 (iohyve 0.7.7 -> iohyve 0.7.9). Debian guest (3 of them). LVM partition. VM starts fine under FN 10.2, but all I get is grub prompt in FN 11.1.