Unity Chain Hinge Joint going crazy

Hi there, can anyone help me out and tell my why my hinge jointed chain is acting up crazy?
Please see the video: unity chain link going crazy - YouTube
Thank you!

Oh! I found the solution! The solution is on the “hinge joint axis” I had to “select” all axises = putting 1 at all axises: X1,Y1,Z1

Super strange! Thanks