I did some more experimenting with this one. Built a new ship in space (a big ugly box), and had no problems in the corridor around the warp drive. I flew to the moon, and then back into space. The radiation was now coming out of the back into the corridor. I reset the ship's position with O, no more radiation. Got back in and did some rolls, and now the radiation had moved to new area. So it seems the problem starts when flying from a planet into space. Using O to realign the ship fixes it, so perhaps the radiation/heat bounding box does not rotate correctly with the ship, and always stays aligned to the default x and y coordinates? I also attached my save so you can check it out. I have 2 ships in orbit you can play with.
