Third Reality Door/Window Sensor Won't Report Status with Maker API

I have a Third Reality Door/Window sensor connected to a Hubitat C-8 Hub. When I open/close the sensor, the status properly shows up on the device page in the Hubitat UI.

However, I added the sensor to the MakerAPI and no PostURL messages are generated when the sensor is opened/closed.

I have other devices that report perfectly with PostURL messages with the MakerAPI.

In addition, if I poll for the status of the sensor using a MakerAPI http request, I get the proper status of the device. The only issue is with the PostURL updates.

Any ideas would be greatly appreciated.

Thanks in advance for the help

Sounds like you maybe didn’t hit “Done” to create the event subscription?

Thanks for the suggestion.
I wish that was the case. I hit both the update button when I added it to the list of devices and then the done button. When it didn't work I removed it and repeated the process again.