Model Rotations are broken

[gambikules]

So after my tests
X rotate in Global axis
Z is Self axis (why)?
and Y ??? depend on Z and X rotation, some time rotate in self Y but some time .. i dont know just random

So matrix4x4 doesn't work , no way calculate self up/forward/right directions because Y rotation is broken

Y work only when Z/X are 0 in others case Not local and not Global cant understand.