Reporting from the Forge branch of Valkyrien Skies 2. Version used is valkyrienskies-116-forge-2.0.0+e95a8ddf69 and eureka-forge-1.0.0+2f1c16a9aa.

When attempting to assemble a ship that is made even of just one block, no matter the type of block, it gives the following error on cascade.

"Ship with ID x has a mass of 0.0, not creating a ShipObject"

Easily replicated by making a fresh new world, placing a block down in the air with either WorldEdit or by hand, putting either ship helm and clicking assemble. Nothing happens and the console log goes crazy with the message above.

fixed in latest