Troubleshooting MQTT? MQTT-Explorer can help you be successful!
If you have Add-ons available, try adding this Add-on repository to your Add-on list. GitHub - GollumDom/addon-repository.
With this you can see that the broker sees and likely find the bug.
Great username! I need to remember to just let things be if they work and not continue tweaking.
I’ve used MQTT Explorer and found it cumbersome as I always had to start the program on my machine. Having it embedded in HA via add-on will be a lot easier to use. Thanks for providing the links.