Compact 1x1 loader requiring electricity to run. There are options to enable or modify capabilities like stacking, disable power consumption, or recipe cost.
Can you be a little more specific in the issue you are seeing. Perhaps provide a save game, or video demonstrating the issue. I haven't had any issue loading cargo ships from loaders.
Found the problem. If the harbourwall is at the shipwall the inserter can load/unload but not the loader. But i can build a landtile closer to the ship with landfill. Then it looks like the ship drive over land but the loader work.
I haven't every played with cargo ships, so I'm not really familiar with typical setup. If you have a save file showing how it looks with other loader mods I'd be happy to try and adjust this to be more similar.