Problems occurred on bank holiday Monday on the Air Galactica ride, which only opened in March and uses virtual reality headsets.
The ride ground to a halt shortly after starting with the problem blamed on heavy rain in the area, which obscured a sensor.
Customers were left hanging upside down between 30ft and 40ft in the air for about 20 minutes before staff were able to climb up and reassure them.
The ride was then restarted, bringing everyone safely down.