Cannot start any VM

[Gillingham]

When I create a VM it shows in the web UI, but after I start it the VNC never connects and the serial interface never outputs any text.

The freenas syslog contains

Code:

May 19 09:57:36 freenas kernel: tap0: Ethernet address: 58:9c:fc:10:ff:d3
May 19 09:57:36 freenas kernel: tap0: changing name to 'vnet0'
May 19 09:57:36 freenas kernel: vnet0: promiscuous mode enabled
May 19 09:57:36 freenas kernel: vnet0: link state changed to UP
May 19 09:57:36 freenas kernel: pid 7880 (bhyve), jid 0, uid 0: exited on signal 6
May 19 09:57:36 freenas kernel: vnet0: link state changed to DOWN

Is there a bhyve debug log or something like that on the system where I can find some useful information as to what the heck is going on. Even if I create a VM with 2048M of memory with the FreeNAS VM UI saying I have "Available Memory: 36.75 GiB - Caution: Allocating too much memory can slow the system or prevent VMs from running." still no go, so doesn't seem to be memory related.

Version/Hardware info:
CPUs: Intel(R) Xeon(R) CPU L5640 @ 2.27GHz
Version: TrueNAS-12.0-U3.1