Unity Editor Crashes while making prefab attached with rigidbody2d

I am using version of unity 5.5.1 p3, and when I am trying to make a prefab attached with rigidbody2d, the editor crashing. please help.

Assuming it’s the same bug, this has been fixed in 5.5.1 Patch 4 which I believe is due to be released on 15th Feb 2017.

Sorry for the problem.

Ok. Thanks.