The electronic version of the electoral roll went down shortly after 10am on election day 14 October, and was not fixed until just before 2pm.
"I think he took everyone by surprise, maybe even including himself."
"I find that kind of idea that people vote on a left-right spectrum a bit frustrating because they don't."
"Avoiding these errors in future is also important for the public's trust in the vote-counting process."
Newshub political editor Jenna Lynch explains.
Luxon chose not to rein it in.
Labour leader Chris Hipkins said Luxon should "show some leadership".
Prime Minister Christopher Luxon has unveiled the Government's 100-day action plan.
You'll be able to watch it here.