The gear appears to have collapsed quite evenly. It doesn't look like the nose went first.
On the contrary, the NLG clearly went first, as BPF said. This was not a retraction, but a downlock failure; the two things are quite distinct.
IO540, several people have pointed out various errors of yours in these forums, yet on you go... I wonder if your behaviour in the cockpit reflects a similar ill-informed arrogance?