Maas Spaces and bindings

So, I have a Openstack Charmed deployment in testing and I would like the networks to be seperated but we do not use VLANs, so we have 2 Nics, 1 for “public” and one for all the backend traffic… In MAAS I can specify the space into which each nic goes and that is perfect. But when I map the bundle in, it says cannot assign to space public because there is no interface on host “0” in the space public (this is for every machine).

Any help , would be great :smiley: