I just received the B&O blue ( love the blue) EM-1. Removed it from the box set on the rails. Not more than 3 days later a pipe came loose. This could be caused by thermal expansion going from a hot day to a cool basement. But be careful. had this occurred going thru a close tunnel it could have been a disaster.
So using a small amount of C-glue and a clamp the pipe was easily repaired
See photos; although the clamp color matches, the clamp is not part of the engine!