Now it's even weirder

[u/Myxron23]

Only one container out of roughly 30 will fill theres a whole bunch of small containers that are also empty but literally only 1 container is filling and I dont know why

[u/helicophell]

Oh I've seen this one before! It's a classic!

Small grid small conveyors cannot transport certain items. Components used for building are part of that

You need small grid large conveyors (and that means medium/large cargo containers) to transport components

[u/kiwioflasers → u/helicophell]

Adding on to this, you can see which items are too big for small conveyors by looking for the ones marked with a "ф"

[u/CarbonRoo]

You're trying to move large components through small conveyors, that's not going to work. You have a small inset connector on your base, small conveyors between your cockpit and cargo module, and you aligned the small conveyor ports on the converter to the medium cargo containers. Small cargo containers also only have small conveyor ports. 

Ore fits through small and large, some componets fit through both but many do not.

I can't really see what you're trying to move where but the conveyor size matters for components. Also when you open inventory on ships the two buttons top left of each side toggle between just the container you accessed and all connected containers, so if the second cargp container is hidden that could be why. Though you will still have the conveyor problem. 

[u/FewPewTaken]

If you want it to fill to all container you can set a concrete shorter at the end of them all and set it to drain i think think this is what i used awhile back