Is it just me or is the wireguard bug back? I cannot get more than one peer to work. If I disable and then re-enable the peer it works fine but breaks all other peers. Just to be clear, all peers still connect but only one can route traffic at a time.
It may be enforcing that your gateway is outside the subnet's range (e.g. container IP is /32 but should be /24). I'm guess the validity check is new, and upgrade removed it since it was "invalid" and why you can't add either. e.g. address=10.21.65.2/32 like should be... address=10.21.65....
I upgraded to 7.11.1 and my veth1 interface disappeared. When I try to re add it I get [admin@RB5009UG+S+] > interface/veth/add name=veth1 address=10.21.65.2/32 gateway=10.21.65.1 failure: veth setup failed I can add the interface without a gateway and then add the gateway later but it doesn't route...