Loaded into my creative map to finish a build I've been working on for a while now. It currently uses two Titian Engines for forward thrust. I have one encased on all sides except the rear thrust area, and the other was still open and exposed (except the connection point) which I planed on covering today. While trying to move my ship into an area with better lighting, the engines (both) disappeared (not exploded, ship is still very intact). After a few attempts to place more, I have met the same results. The engines continue to disappear each time they are to be used for any direction of movement or are accessed from within the control panel to adjust its Thrust Override settings.

Thanks for your time.

*Edit: Reloading the save, dropping and re-adding the mod, and a fresh client restart do not fix the issue for myself.

Nor does unsubbing and resubbing.