Door lock issue

[kev-s]

I'm having a locking issue with my Avant

So using the key fob i can press once to unlock the drivers door, then press again to unlock the other three like it should be

Now my issue is when it comes to locking, when i go to lock the car, three doors lock but the drivers door dosent, it takes repeated presses of the key fob to get the drivers door to lock and for the alarm light to flash

Also if i go to lock the car and only three doors lock, then i press unlock and then re press lock then all four doors will lock and alarm light will flash

Ive checked the wiring running from the door to chassis and there are no visible breaks etc...