The Solid Rocket Thrusters in my rocket are visible when the attached save is loaded (rocket is in top right). The rocket was in flight at 4% when the save was made. They do not seem interactive, so just a (confusing) display bug.
I don't have an output_log.txt where the instructions describe.
Thanks for such a great game!
1. Load savegame "The Diseased Spacepad.sav" in RP-394616 2. Observe solid rocket thrusters visible even though ship is in transit