Running into some issues while building a deCONZ adapter

I am able to get a device to add, a smartplug, but when I try and toggle it I get a “Thing not found” error on the property set. It shows up in the device list and I am able to view and edit the thing. I’m not sure what I’m doing wrong.

http://localhost:8080/things/7c:b0:3e:aa:00:ac:b4:e9-03 returns the thing description

http://localhost:8080/things/7c:b0:3e:aa:00:ac:b4:e9-03/properties/on returns “Thing not found”