Hey Everybody

I've installed a new receiver into our robot to fix our failsafe issue (Thanks again Theo) & when testing it have encountered a new problem. Our actuator will only work in one direction. We've tested the actuator separately and it works fine on it's own but not when connected to the rest of the circuitry. When we send signals to the relay switch it lights up to indicate forwards & backwards movement but the actuator itself is only moving forwards.

Has anybody got an idea what might be going on & how we can resolve it?

Thanks in advance