2 ships landed on minmus hooked them up with pipe end connectors. flew another ship in removed one of the pipe ends and well only way to describe it is kraken. the ship my kerbal are hooked together flailing about madly. as soon as i grabed the part this was in the debug menu.

[Warning]: [PartJoint]: None of the provided nodes was valid!
i'm going to try and recreate it and get it in a .log

FYI. This is happening to KIS as well. The reason is unknown for now.

here is a video of whats going on. http://youtu.be/jiVUsij7GCo it will be up about 20 min after this post.