Kerbal Space Program

In my modded install of KSP (version 1.1.2), I attempted to land a crew transport on the surface of the Mun near my Munbase. Upon what I would call a perfect touchdown, the entire craft suddenly experienced extreme g-forces and blew up. I tested out the same mission in a non-modded install of the same version to find the craft experiences the same effect.
This is annoying, as I'm playing in career mode with Kerbal Construction Time, and making that landing is necessary to keep the game flowing, if you know what I mean. It also makes landing completely impossible for anyone, so you should understand if I say this it 'high priority'.

I believe it may be related to steve_v's issue, where Kerbals on EVA will destroy the LT-05 landing strut (and everything attached to it) on contact, as in both of my tests it was the landing gear that touched the surface prior to the kraken showing up.

Attached is a video showing some of my testing of the issue, particularly the catastrophic landing. The first half is when I performed the experiment with mods, and the second without (just to show there's no difference whether I use mods or not).

Also attached is the output log from the non-modded test I made, and my system's specifications (DxDiag.txt). I tried to include the persistent save file but it's bigger than 5 MB, though I imagine if you try with any craft equipped with landing legs of any size than you'll see what I mean.