Pipe cooling contents despite being hot.

In my current world I have a pipe that will continually cool its contents. The issue persists through reloading the game. Creating a new save file and reloading the new file disabled the glitch.

The contents of the pipe are cooled. New petroleum can be piped in as the previous amount is cooled without disabling the effect.

Below is a screen shot of the pipe. It is the damaged pipe.

I am unsure of how to recreate the bug. What I was doing when the bug occurred:
Powered the polymer press on the right so is started to create plastic.
Planned the construction of the 8 upper pipes including the glitched pipe and two pipes below the output.
Deconstructed a pipe located one blow to the left and one block down from the broken.
Replaced the deconstructed pipe to be vertical instead.
Continued making plastic.

I attempted to recreate the bug on a new save but was unable to do so.

I have attached my save file. The glitch has occurred each time I loaded the save file.
The Hapless Brigade Cycle 220.sav