hello,
i just started learning houdini 16. i am working on a car animation with the use of RBD objects and static objects tools.the problem is when i play the timeline, the car and it's tires starts animating seperately, after checking every node's parameters I've got an option called ‘use single object’ inside the car's ‘dopimport1’ node. so i checked it and now tires are animating with the car in obj level. but still inside the AutoDopNetwork node car and all 4 tires animating seperately. i don't know how to fix this issue. please help.

The “RBD Objects” shelf in H16 creates an object per connected piece by default. So your tires are become separate objects.

Use “RBD Hero Object” to create a single RBD object out of your car.

Thanks for the help. my problem is solved.