Hi DozyWannabe,
if it were truly a "glitch", I suspect it would have been fixed by now given the amount of time the series has been in service.
Originally, AirBus procedures were to turn all fuel pumps off during the "after shut down checks". When we initially operated them, with 30 minute turn rounds, one of the first items was turn them back on again (all white lights extinguished). We obtained a no technical objection from AirBus to leave the pumps turned on during turn arounds. We then had a spate of the centre tank pumps running for 5 minutes (timer logic) when the refuelling panel was opened. Software glitch?
Since we hardly ever carry centre tank fuel on our short sectors, the pumps would eventually run so dry that we would loose pump priming fuel and the pump pressure low caution "ding" on every turnaround, and subsequently found some aircraft had up to about 200 kgs of unusable fuel in the centre tank.