I encountered such a problem and would like to make suggestions on how to fix it, after leaving the quest, for example, with things, and landing on the base - the carables simply spit things around, as SRTF spat out 10,000 kg of items, and my colonists dragged them 1 game month, most of the things rotted ...
NECROS, please unload things like from a muffolo for example, that is, animals weigh bags on their backs, and the colonists will slowly unload things from there.
That would make things much easier.