The Russians have quality control problem with their rockets. The latest example, per Spaceflight Now:

A Russian defense payload built to monitor maritime activity, and possibly track the movements of submarines, is stuck to the upper stage of its rocket after launching Saturday from the Plesetsk Cosmodrome, multiple Russian news agencies reported.

The Kanopus ST spacecraft is still attached to the Volga upper stage of a modified Soyuz rocket that was supposed to deploy the satellite into a circular sun-synchronous orbit nearly 700 kilometers (435 miles) above Earth, and experts said Monday the craft is heading for a destructive re-entry within a few days.