
It had to do with the fact that the ride, Alderflug, looked like a swastika. After massive social media backlash the park decided to close the ride and redesign it with the manufacturer. The ride is supposed to be four eagles on spinning arm, but once the ride opened it became obvious that that was not how it turned out.
Germany is quite strict when it comes to the display or usage of the swastika symbol, so many wonder how such a design flaw occurred.