Its clear the DQN model is having some issues.

The reward fluctuates and never reaches positive which means the rocket never lands in any episode.

To fix this I lowered the learning rate and decreased the penalty for crashing.

I also fixed the GUI logic so that if the velocity is a low speed and the rocket’s y coordinate is the same as the ground then the rocket does not crash and lands.

However, this issue persists and so I will now examine both the GUI and the AI logic to find the source of the error.