I have a Tamiya Sherman that is acting up. I bought it used with a Hobby People 2.4 (Airtronics) radio. The transverse seems to not always want to work and is intermittent. I put a Futaba 4YF on it that used to be on my Tamiya Panther and the transverse is fine on the Panther. Once its in the Sherman its is not responsive or it works here and then stops. However when I put the Hobby People radio that came with the tank, the transverse works. What the heck am I missing? Could the DMD and MF be bad?