Only experienced after creating a hot air balloon IRL days into the world.
World has other VS ships without issue.
Essential world continued to work until saving and restarting the game, world functions if I do not restart the game.
After saving, every level.dat the server produced crashed the game unless propulsion was disabled, even after rolling back problematic level.dat and saving without propulsion the issue still occurs without any propulsion blocks/items in the world.
Rolling back to an older level.dat file allows the world to function with propulsion until restarting.
No other VS ship uses propulsion items.
This somehow affects new worlds unless the problematic level.dat is rolled back.
These are our observations, we've tried doing many things to the world file to fix this on our own and these are the findings we've put together.
If you need us to do any testing on the world or provide any info please contact me.
I have spent many hours trying to find a better solution, I am tired, please tell me anything about this. Thank you. Seriously.