Starlink?
Do we know whether such consultations took place for Starlink (and Kuiper, OneWeb, Hongyang etc.)? These massive constellations of satellites, with their potentially costly adverse impact, certainly appear to lie within the scope of this treaty.
(Then again, some would argue that the national legal framework that provides legal cover for the FCC's seemingly gung ho approach to satellite approval, namely the US Commercial Space Launch Competitiveness Act of 2015, is itself in breach of the Outer Space Treaty...)