Hi,
My A340 is installed since the beginning and I have the same issue on nose wheel + shock absorber when the aircraft is taxing I see textures rotating on shock absorber.
I noticed that when I put ADIRS 1, 2 and 3 in NAV I will only have TAT and SAT information after alignment, the same does not happen in the real plane, the real plane says that when I put ADIR 1 in NAV I immediately have TAT and SAT information, that is, I do not need to wait for it to align.