Mass doesn't recalculate on merging/connecting
Inventory size realisic.
This ship CANT lift 3M kg
Attaching world for testing
In attached world save, there are 3 containers.
-Left one have wrong grid mass (steel plates are inside).
-Center one to check that ship can`t carry. It has almost 0 grid mass
-Right one was a copy/paste of central. It has mass.