T6 Thermostat High Route Changes

One of my Z-Wave T6 thermostats seems to be paired directly to my C8 hub, but shows what seems to me to be a high number of route changes. Anyone have any ideas/suggestions as to why?

Distance and interference (stuff in walls, walls, etc). How far is your hub from is the thermostat? You may want to try throwing a beaming repeater next to it..

Hub is maybe 20 feet from this thermostat. I have 3 mains powered Z-Wave dimmer switches in very close proximity to the t-stat and hub.