2 types of small hardpoint - badly bugged

[Mulbin]

I'm having an odd problem.

My game has two different types of small hardpoint sitting right next to each other in the build screen. One is the new sleek model, one is the old chunky model (pre 1.04?).

If i try to use the new sleek one it looks fine in the editor but when I launch I suddenly have the old style chunky hardpoints (which don't have the jettison feature).

I also have to re-buy the sleek new ones every single time I go into the editor.

I have no mods adding these parts to the game and can only find one small hardpoint folder in my squad folder... where the heck is the old style hardpoint coming from?... and why is it breaking the new one?

Mods installed... (ksp 32 bit)

Antenna range
Boulder Co
Chatterer
Custom Barn Kit
Engine Light
E.V.E
Firespitter (just the fuel switch, no parts)
IFILS
KCT
Mechjeb
Realplume
Scansat
Scatterer
Ship effects
Stock Clamshell fairings
Superstock (my current dev build)
Toadicus
KAC

[NathanKell]

Clean out your old Squad folder in gamedata, then install a fresh copy (either from the zip or by steam->Validate files).

This is why it's a good idea to do a _clean_ KSP install each version, rather than just plopping it on top of your old install--paths and files may change. :)

[sal_vager]

Or just the structuralPylon and smallHardpoint folders in GameData/Squad/Parts/Structural...