OK, I recently received my RailPro (installed in a G-scale USA Trains GP9) and I'm having the same issue as KiloWhiskey. Everything is working correctly except for the Brake function. Per the Ring User Manual, I tried all of the following with negative results:
"To use our True Motion Technology, you need to set up one of the User Defined Buttons as a Brake Button. Choose the "Brake" picture. Set the button to "Type Action". Select "Brake" in the "Name" field. Choose "Button Action" to "Momentary". Press the "Edit Button Text" and type "Brake"."
"Tip: You must set the speed to 0.0% before operating the Brake button".
"Tip: The longer you hold the brake button down, the more the brakes are applied. Release the Brake button to release the brakes". (While holding the button down, to the right I see red numbers displayed that ascend from 11% to 100%).
"Auto Compressor Sounds" is enabled.
"Engine Name" is "EMD 567-16 ULT".
Thanks in advance for more suggestions!
-Mike