@tshoemaker could you please check out the latest version of the develop branch? I found and fixed a bug with contact detection with non-lj units. Let me know how it goes.
@Amir_Behbahanian2 What you are doing here is called “hijacking a thread” and generally frowned upon in online communities. Rather than posting at the end of a thread, it would be better to delete this and create a new post with a descriptive subject and then add a link to this discussion.