I think sometimes it gets a really big impact on the top or bottom of the piston and it tweaks it causing it to get stuck on the casing. I need a softer and more continuos explosion, but i dont know if that can be done. Maybe mounting the piston rod in a different place will help
true not yet, i will have to make it so the spawn points are relative to the motor. Bit of a pain to do at the moment with rotating squares, hopefully soon emil will make it so you can simply grab an object position in thyme.