Using opnsense/pfsense as router for private network

Hi all, I'm trying to setup opnsense as a router for a private network inside of proxmox. I have gotten it working (config below), but see some odd behaviors. When I add new VMs on the private network using either static IPs or DHCP, they have no network access outside the private network until I restart the opnsense services. Once I do that, everything is great. I'm trying to figure out what could be causing this.

Some details on the setup:

vmbr1 is a bridge on 192.168.10.1/24, bound to...

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