Ko Propo Esprit 2.4Ghz conversion problem

[nivlacf1]

Hi guys

i Converted the transmitter to 2.4Ghz with the flysky (i think it is) hack module ,

it worked great for a couple of races but now i have a strange issue, when i turn it on the transmitter and receiver seem to bind but when pushing the throttle or steering nothing seems to happen, the green light on the receiver seems to slightly blink when you push the rods on the transmitter suggeesting its receiving a signal from the transmitter but its like the signal is not then being sent from the receiver to the servo or esc? any ideas on what this might be? thanks