the better future air receiver is a gamebreaker for me. It works fine normally, but if you fire a delivery cannon into it from below, it invariably crashes my game. I do not know why, as the description for the receiver says it is able to grab a resource chunk if you fire a delivery cannon into the bottom. It crashes the game every time, no matter how different the setup for the cannon and receiver is. Im in the latest version and in the work-in-progress branch.