The thing is, i couldn't start the VM manager without making unraid unresponsive. That is why i was looking for a way to at least disable the auto starting off the VM's within the manager.
The reason i wanted to turn it off, is because 1 VM is non default. I had added the below line to the XML to load up the Coral TPU, which wasn't a passable pci-e device.
Since i moved hardware around, or rather removed, it seemed that the Id of the coral TPU was different, and it was.
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
</source>
<alias name='hostdev0'/>
<address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
</hostdev>
The bus in question changed from 0x03 to 0x01. And i had no way to edit this.
And that seemed the most logical cause of unraid becomming unstable.