Cargo ship won't dock

[Villid]

On each of the colonization missions, I am running into the cargo ship assigned to it not docking. Is this a common issue, and what work arounds have people found?

[voidCaster]

If the dock has something like 300 units of any given resource backed up into it, cargo ships won't dock. I have not figured out whether it has to be a full 300 units of any 1 or whether it's 300 units of any group of resources.

If the dock is not in a sector which has the resources to send to the mission, and sometimes if the mission resources aren't loaded into the dock yet by the drone minions, cargo ships assigned to deliveries won't dock.

Colonists are a Resource just like everything else, and just like you can't use Sector 1's Alloy storage to build in Sector 2, you can't use Sector 2's population of trained Colonists to ship out from the docking bay in Sector 1.

If the docking bay is cleared of all resources and colonists reside in the sector where that particular cargo ship resides in a docking bay, check your construction and make sure the minions aren't busy doing something else instead of moving colonists to the docking bay.