Roblox has appeared to silently roll out a physics update today (November 7, 2023), causing my trash trucks, and trash cans to have abnormal behavior. This seems to be common on all vehicles using “A-Chassis Tune” and the associated kit. My trucks now fling upwards as they are intializing, removing whole groups of constrainted parts. My trash cans are now too heavy when they were previously liftable by the truck, despite having CustomPhysicalProperties enabled, and the Density set to 0.01.
Here is a video of one of my trucks initalizing. Notice the tag axle (the extra set of wheels in the back of the truck) disappearing as it does so.
Here is a video of that same truck attempting to collect a cart. Note the “heavy” behavior that is caused, as if the Density of the part wasnt 0.01 (warning: audio may be loud).
Here is a video of what the collection of a cart looks like prior to November 7, 2023 (warning: audio may be loud).