Actually, it is not the icon bug thats "bugging" me. (haha!) I uploaded a screen shot that hopefully shows what I mean. The red circle is where my mouse is, which didn't show up on the screen shot. See how the tracks are still selected? The issue, is that the bounds of that part, the medium track, seem to be larger than the visual model, at least on the up-down axis. This wouldn't be a big deal, if putting batteries and structural panels too close to the tracks didn't periodically cause them to vibrate the craft to bits. It seems to me that when that happens, there is an invisible chunk clipping with the rest off the structure, causing issues. Sorry for not explaining better earlier, I was at work... Still one of my favorite mods, and it's not even done! http://imgur.com/yvsDC68