I think the problem with the landing gear may have something to do with the simulated landing they do with the wheels spooled up backwards to simulate the rapid increase in tire spool up.
I was watching the Discovery Channel show on the A380, and the landing gear engineers were a bit concerned about bogey flexing during the testing. You could see in the replay showed the front and rear tire (on the six-wheeled bogey) were bouncing up and down on the "landing". Just a thought.
PS - I don't work for Airbus, and the above is nothing but my lay-person observation from a television show.