PaulS:
So it seems to not be sending the 127 or 255 to the roboclaw channel 2.
Or 127 and 255 are the wrong values, or the brake instance is connected to the wrong pins, or the motor you have doesn't support braking.
Slide 26 explains the values for simple serial. I am only using 128 or 255 as I need the brake to either apply or not apply fully. I have checked and have the right switches pushed on/off for simple serial and baud rate and have S2(since I have one motor on S1 and the brake on S2, channel 2) to pin 6 as described in top of my code. The receive input of pin5 is not important as the Roboclaw does not transmit anything back.