veth interface error: "could not open network device veth9e3d3ff1 (No such device)"

In COE-36 we noticed that "ovs-vsctl show" shows veth ports with Interface error: "could not open network device veth9e3d3ff1 (No such device)" ... according to k.faseela:

These veth ports error won't cause any issue for you, they are actually stale veth ports that remain. I have seen the same issue, but have not clearly seen when they start showing up, but ofcourse this is a bug.