Rtl_433 MQTT Auto Discovery not seeing devices

[Tomadoggy (John Gibson)]

Been struggling with this for several days and tried many different configurations. Still no rtl_433 devices being created. Here is my setup:

rtl_433 is communicating with MQTT and providing these devices in MQTT under the rtl_433 directory tree

rtl_433 MQTT Auto Discovery log shows a successful connection to the MQTT broker:

This is my rtl_433 MQTT Auto Discovery Configuration

But no MQTT entities are being created

My output from rtl_433 is formatted in json:

Thanks in advance!