Kerbal Space Program

Note: I suspect this is related to bug #5181, but the particular circumstances are different so I'm filing this separately.

In version 1.0.4, when I attempt re-entry with a spacecraft, the spacecraft parts seem to heat up in a random manner, giving inconsistent results even when rerunning the same (modulo differences of 10-20 meters in periapsis) re-entry scenario. Following the reproduction steps below, I have seen in various runs:

- The docking port rapidly heats up to near its maximum temperature, then is instantly reset to a temperature below the gauge display threshold, 4-5 times in the space of about 2 seconds.
- The docking port rapidly heats up to about 80% of its maximum temperature, then stays there until the craft exits the atmosphere (70km), at which point the temperature drops below the gauge display threshold in about a quarter of a second.
- One of the four RCS quads repeatedly heats and cools like the docking port example above; two of the RCS quads heat to about the halfway point on the temperature gauge; and the last RCS quad does not heat up enough to display the temperature gauge.
- One of the three landing struts quickly heats up to 1387 degrees skin temperature (checked with the debug menu), stays at exactly that temperature for about a minute as internal temperature increases, then quickly cools down to around 300 degrees. The other landing struts do not reach the temperature gauge display threshold during this time.

Version 1.0.2 did not exhibit this behavior; spacecraft parts heated in a consistent manner on each re-entry attempt.

To reproduce:
1) Load the attached save file.
2) Switch to the flight "Re-entry Test".
3) Accelerate retrograde until periapsis reaches approximately 32500m.
4) Set SAS to retrograde hold.
4) Enter Kerbin's atmosphere (70km) at time warp factor 1 facing retrograde.
5) Observe heating of spacecraft parts during re-entry.

Version: 1.0.4 (Linux 64-bit), build 00861, vanilla (never modded)