I am sorry to read about the issues experienced in this thread.
I am closing it, but not because the issues are not valid but rather to keep everything in the same place.
The existing threads for interested parties to give feedback are the official SU9 thread (Discussion + Poll: Sim Update 9 (1.25.7.0)) or the specific xbox thread (Severe Problems on Xbox After Sim Update 9)
I would encourage use of those threads instead.