Driver's door lock problem

[GeoffWW]

Hi All,

I wonder if any of you have had my present problem and what was the cause and remedy?

Using the central locking fob, it locks all the 4 door locks.
Unlocking the car with central locking fob, with one press or two driver's door stays locked whilst the others unlock.

Manually, using the key inserted into the driver's door-lock barrel, this unlocks the door.
Also, the lever release inside the car releases the driver's lock.

Is this likely to be an electronic fault, not in the door parts, but in the electronic controls behind the glovebox?

Any help would be welcome.

Thanks in advance,

GeoffWW