1. place a ship core
2. place two blocks of any type on ship core
3. remove the placed blocks
4. attempt to turn or roll the ship core
At this point the ship core is unable to roll or pitch as opposed to the mobility of a freshly placed ship core. The ability to move forward and back as well as strafe and up and down are still functional.
https://youtu.be/8NdGvu8z-qs