3 bites 3 carp lost

Ever since I started using this rig (selfmade) I started to loose fish when setting the hook. What could be happening? Before, I was using pre made Ronnie rigs and had no problems

Ever since I started using this rig (selfmade) I started to loose fish when setting the hook. What could be happening? Before, I was using pre made Ronnie rigs and had no problems