No neighbors lead back to controller?

I have two dimmers that show up grey in my network map so I looked into the neighbors for each. They both show the same neighbors, 2 other mains dimmers, and 2 battery powered devices. Neither device is neighbors with any device that shows the controller as the neighbor.

Things tried:

  • Full network heal
  • Reboot HA
  • Stop / Start Z-Wave network
  • Individual device heal and refresh

One thing I’ve noticed is the controller itself fails to update neighbors…

2020-12-17 20:37:20.065 Warning, WARNING: REQUEST_NEIGHBOR_UPDATE_FAILED
2020-12-17 20:37:20.065 Detail, Notification: ControllerCommand - Failed