Hey guys. Picked up my 6MPS today, but having an issue that I can't figure out (could just be a colossal noob about it all)

If I lock the car with the fob, the drivers door won't lock (can open freely).
If I lock the car with the key (which locks all the doors) and try unlocking the car with the fob the drivers door stays locked.

The immobilizer and double locking system seem to function as intended.
Have made (pretty) sure all the doors and boot/bonnet are shut. Any help? Sorry if it's in the wrong section. I just want all the doors to lock on the fob. Thanks guys.