I might be misunderstanding something, but I'm struggling to get the loaders to work. They will pull from a chest onto a belt and completed items from a building onto a belt, but will not move any items in any other configuration (e.g. no chests to chest, belt to chest, into buildings from anything, belt to belt, etc). I started a new save with only the Belts, Loaders, and Space Age mods installed to see if it was an issue with that, but it still won't do anything other than take items out of a chest/building onto a belt. I'm not sure what's happening, but the images don't suggest this is the only functionality, I was really interested in having them fill a chest in the belt path, like the first picture. Am I doing something wrong?

Hi.

I think its as simple as the correct rotation of the loader.

Working on new in game assets for the loaders that will make overview better.
If you want you can add me on discord, faster to se if its the orientation or a mod fault there.

so with the new update i cannot rotate the pull direction of the loader now , i think thats what hBrovechkin means also , i place it and it will pull from the chest but i cant rotate the direction to make it pull from the bet into the chest like it did before it doesnt react to pressing R on it

Confirmed user error, I needed to rotate the loader to have the belt end and the chest end in the correct orientation before placing the ghost, and then rotating the loader after placement to set the direction of flow of items. I was treating it like an inserter where only the initial direction matters. I was only looking at the large arrows on top and matching that to the intended flow, and didn't understand the importance of the belt side vs the old Apple Lightning connector side.

I found a few things and hoping this fix will be stable.

Still testing in a few combinations/scenarios.

Let me know if this helps you specifically or not.
(You might need to replace the non working ones)