In Rostock port too, in January 2020, two Liebherr harbor-cranes fell overboard into the harbor while they were loaded on a vessel. The German Federal Bureau of Maritime Casualty Investigation published a detailed investigation report >>>
For the crane failure here, the German Bureau did not even start an investigation; it is probably considered as an industrial shipyard incident.
There were certainly investigations started by the insurers and the concerned builders in Germany, the Netherlands and China (and may be elsewhere). However, none can use the results as good PR…