Problem: When running, the physics engine makes the gliders on my railcars bounce upward and bug off the track for seemingly no reason. This happens on nearly all railcar types I’ve built, however the problem seems to disappear on my intermodal cars, the only differences being that they are longer and have taller gliders.
Request: Any type of fix or suggestion.
Notes: Track is flush, no bumps. All railcars have the same base model; all gliders are same. Running physics at Skip8 in videos, normally run at Skip2 when no such bug occurs. Railcars are held together by a RopeConstraint. The project is destruction-oriented, but it’s much less appealing when the train arrives already destroyed.
Try increasing the Mass of each platform significantly, maybe the mass of the sliders too. This is found under the CustomPhysicalProperties property of each Part.
Minimal effect on result. Sliders originally massless.
Notes: Using slider.AssemblyLinearVelocity = slider.CFrame.LookVector * SpeedVar to push sliders forward when touching track. Issue is something with sliders absolutely, as track is cleared. Tried increasing and decreasing size of sliders to decrease ability to change LookVector easily, no effect. Issue seems to be with collision, although nothing to collide with just makes it harder.
Update: Reverted to previous version of models and everything happens to work now, with nearly no jittering. I have no idea what was different that caused the issue.