Kerbal Space Program

Sometimes when the physics first kicks in, vessels undergo weird forces and/or destruction. Especially seen on land bases (e.g. mun base) when going to the tracking station and selecting to "fly" the craft, or when using '[' or ']' to switch between active vessels, or even when just flying closer to them. But happens on vessels in orbit too (I had one simply fall apart when using '[', with no mods installed). See https://www.youtube.com/watch?v=O1vrclkR72k for a video example, or http://www.reddit.com/r/KerbalSpaceProgram/comments/1chff9/landed_ship_explodes_on_loading/ for another person experiencing the same problem.