Nomad0815

So... I think i found a way to reliably break the flight engineer (locks up and KSP no longer exits correctly). I'm not sure if this issue only surfaces with big ships (700+ and 1000+ parts) - but the lockup can be prevented by disabling fuel crossfeed on the docking ports. The 700-parts ship has a linear structure (the other one is a space station with two ships docked, one with KER), like so: KER-F-E-||--------|-F-E The right part is the remaining launch engine of the middle section. The section on the left is the C&C module, but also a detachable ship on it's own. The lockup happens when I enable fuel crossfeed on the red docking port, regardles of the fuel crossfeed setting on the green ones. Enabling or disabling fuel crossfeed for the green docking port seems to have no effect on the flight engineer. Sideways mounted fuel pods on the central structure (docked separately) are completely irrelevant for this issue. The debug log has no relevant warnings or errors, at least as far as i can tell. The lockup with the space station is similar, disabling fuel crossfeed on the right docking ports prevents the lockup. I can upload a screenshot (or anything else) if it helps...