hi maculator, of course, sry, thought the problem is known: my spaceship looks like this, you see, there are parts of infernal robotics.: when im on the ramp, and let the siderockets pull up, they stand allmost still. the joints "try" to pull them up, but it looks like, joint reinforcement is to strong i could make a second screeny or a short video if it would help you. by now, joint reinforcement is uninstalled, cause of that problem. thanks for your time!