Arduino motor shield r3 issues

Hi all,

I'm currently using an RC controller to control DC motors attached to an r3 motor shield. I'm running into an issue where the direction of the motor is defined by a pin being set to HIGH or LOW. for some reason this pin setting has no impact on the direction of the motor. any help would be appreciated

Firstly, a link to the shield.
Secondly a circuit of how it is connected and powered.
Third, a program.

We may then have some chance at helping you.

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Generally it is always a good idea to read the rules of a forum when posting for the first time.
For your convenience you will find the URL in my signature.

After having given the proper information in a proper manner (pls use code tags) you will be assisted properly.