Finally, all the school and stuff is coming to an end, 19th of June is the end of my school year.
I logged on SP for the first time in a while, I wanted to make an entry for that anti tank challenge. However, all my attempts at making some kind of suspension are ruined by all the parts becoming stiff after I add any form of hinge or rotator. I copied the hinges from my old cars, still no effect. Any ideas what is going on?

And yes, I changed the setting of the shocks, made them 10% strong, 250% strong, same for dumper. Nothing.