Missing router interface flow in table 19

I have created a topology with two routers connected to an external-network. each router is connected to two private networks, each private network has one subnet and two VMs. In addition, I have two compute nodes.

I can see that one of the 4 router_interface flows is missing from table 19, on both computes, which causes ping for both vms on this network to fail.

i'm attaching karaf log , ovs flows dump, and some of the karaf models.

The missing router_interface flow has ip 71.0.0.49 and MAC fa:16:3e:c6:d9:1b.