This is the part in question: This is its coding: PART { name = OFS-Structure module = Part author = UbioZurWeldingLtd rescaleFactor = 1 PhysicsSignificance = -1 node_stack_bottomlargeAdapter0OFS-Middle0 = 0,2.727659,0.5151255,0,1,0,2 node_stack_topbatteryBankLarge5OFS-Middle0 = 0,9.572899,0.5151255,0,1,0,2 node_stack_bottomlargeAdapter1 = 0,7.03231,2.932279,0,0,-1,2 node_stack_bottomlargeAdapter2 = 0,7.03231,-1.902028,0,0,1,2 node_stack_bottomlargeAdapter3 = -2.417153,7.03231,0.5151255,1,0,0,2 node_stack_bottomlargeAdapter4 = 2.417153,7.03231,0.5151255,-1,0,0,2 node_attach = 0,0,0,0,0,0,0 CrewCapacity = 0 TechRequired = sandboxWeld entryCost = 0 cost = 13330 category = Structural subcategory = 0 title = OFS-Structure manufacturer = UbioZur Welding Ltd description = Warranty void during re-entry. attachRules = 1,1,1,1,1,1,1 mass = 3.16 dragModelType = default maximum_drag = 0.1937012 minimum_drag = 0.2877197 angularDrag = 1.928223 crashTolerance = 22.99823 breakingForce = 457.9819 breakingTorque = 457.9819 maxTemp = 2908.496 fuelCrossFeed = True MODEL { model = Squad/Parts/Utility/largeAdapter/model position = 0,3.482659,0.5151255 scale = 1,1,1 rotation = 0,0,0 } MODEL { model = Squad/Parts/FuelTank/MK1FuselageStructural/model position = 0,5.182659,0.5151255 scale = 1.25,1.25,1.25 rotation = 0,0,0 } MODEL { model = Squad/Parts/Structural/stationHub/model position = 0,7.03231,0.5151255 scale = 1,1,1 rotation = 0,0,0 } MODEL { model = Squad/Parts/Utility/largeAdapter2/model position = 0,8.133682,0.5151255 scale = 1,1,1 rotation = 0,0,0 } MODEL { model = Squad/Parts/FuelTank/RCSTank1-2/model position = 0,8.822899,0.5151255 scale = 1,1,1 rotation = 0,0,0 } MODEL { model = Squad/Parts/Electrical/batteryBankLarge/model position = 0,9.447899,0.5151255 scale = 1,1,1 rotation = 0,0,0 } MODEL { model = Squad/Parts/Electrical/RTG/model position = 0,5.251233,-0.08585417 scale = 1,1,1 rotation = 0,180,0 } MODEL { model = Squad/Parts/Utility/largeAdapter/model position = 0,7.03231,2.177279 scale = 1,1,1 rotation = 270,0,0 } MODEL { model = Squad/Parts/Utility/largeAdapter/model position = 0,7.03231,-1.147028 scale = 1,1,1 rotation = 270,180,0 } MODEL { model = Squad/Parts/Utility/largeAdapter/model position = -1.662153,7.03231,0.5151255 scale = 1,1,1 rotation = 270,270,0 } MODEL { model = Squad/Parts/Utility/largeAdapter/model position = 1.662153,7.03231,0.5151255 scale = 1,1,1 rotation = 90,270,0 } RESOURCE { name = MonoPropellant amount = 750 maxAmount = 750 } RESOURCE { name = ElectricCharge amount = 4000 maxAmount = 4000 } MODULE { name = ModuleGenerator isAlwaysActive = true OUTPUT_RESOURCE { name = ElectricCharge rate = 0.75 } } } Attaching a Cupola: attaches fine This is what happens while flying, or in orbit to any of the connecting surfaces with any part. Its hard to see, but the module is coming apart from the structure just by moving the rocket around.