All, After some further troubleshooting and some more lab work, I was able to determine the cause of my issue. I run 3 separate Loopback subnets (10.5.0.0/24, 10.5.1.0/24, 10.5.2.0/24) for my MPLS LO addresses (see picture attachment). I was actually doing some upgrade work to 7.16.2 from 7.16.1 on ...