Windows, Stock + Breaking Ground, fresh install. I suspect this also affects non-DLC games.  I've been observing some strange behavior related to low-mass parts in version 1.11. Certain (low-mass, physics enabled) parts seem much heavier than usual, despite no changes in mass or CoM being shown in the VAB.  Crafts that include these parts suffer from a significant increase in weight and a loss of delta-V.  Robotic parts sag as if burdened with extra weight. Some of my crafts from 1.10 have