While testing the power system to find the most efficient system I noticed the block count was off.
I added blocks in 10 count increments. I actually seen it put 10 blocks in multiple times yet increase count 11.
I also noticed the mass was off because the block count was off.
It doesn't do it every single time you add 10 blocks in a row just every so often. I have saved the ship if you need.
The ship is a core with 320 blocks on top of the core branching off the lowest core is 319 blocks they are perpendicular to one another.
Thus their dimensions is 320x320x320 with the core being at the bottom that dimension is 321. The game has the dimensions correct.
It however has the block count at 1027 and mass at 102.6
The actual block count is 320+319+319 for a total of 938+1 the core = 939 a difference of 88 blocks.