When you create chain, Blender add path called deform and rot_link which is empty.
I have extruded the vertices of deform path to make more links in the chain.
Now the problem is when is scale down the chain. Scaling down deform path, links are disapearing.
How to scale/manipulate the chain after you create it ?
EDIT: Make a chain, extrude deform a couple of times and scale down the chain, deform and rot link.