ExecutiveOne

Hi! I'm on a MacBook, running KJR 3.1.7 on KSP 1.1.2.1260. I have a space station orbiting Mun that breaks apart less than a minute after selecting it from the Tracking Station. If I uninstall KJR and restart KSP, the station is stable––a little wobbly if SAS is enabled, but nothing self-destructive. My savefile, consisting of just the problematic station, is here (The savefile requires MechJeb and SpaceY Lifters.). If anyone is able to reproduce this problem, recommendations for resolving it without having to remove KJR would be particularly welcome.