Recently on April 29 2021, Chinese space program launched Tianhe as part of Tiangong space station. In launch section it states the mission was failure:
Tianhe launched on 29 April 2021, at 03:23:15 UTC atop a Long March 5B launch vehicle from the Wenchang Spacecraft Launch Site. After the core module was put into orbit, the launch vehicle entered a temporary, uncontrolled failing orbit.
But in List of mission, it is declared a success.