I have recently bought a Technic Hub and four Powered Up large motors, but currently I only put two motors into the B and D port of the hub. I downloaded the Powered Up app to a pad and used the "Create" function to create a custom controller.
After I pressed the green button on the hub, there is a progress bar and the light on the hub is flashing white, blue, and red. After the progress bar reached 100%, the screen on my pad returned to that of the controller interface. However, I could not get the motor to move and the light on the hub is off.
The programming block I use is this (but I selected the B port):
Could you tell me what is wrong?