i have made a couple custom space miners with different movment points, but after they do their work in any astroid field, they drop down to one movement point. and continue to use that one point until i upgrade them to a different version. but... even after the upgrade, and i send it out to do it's job, it will again drop to only one movement point after it is finished the job.
there is nothing in the debug about why it's happening. if you need screens, i can provide those.