I have three struts making up the floor of the interior of this craft. As soon as the thing is loaded, the struts' heat shield keeps going down until they explode. I have no idea what the problem is, so I don't know how to reproduce it. Just load the sandbox and enter the craft named Backup.
Found in version 0.9.700.0 on android.
Lol I've figured it out, don't worry about it.