After using the spaceship designer for some time (with lots of movement and rotations), copy-pasting groups of objects no longer reliably preserves their relative positions from one another. Brackets will lose alignment and even assembled engines will fall apart while in their green free-movement mode.
Steps to Reproduce (not specific, sorry!):
1) Spend an amount of time building ships in the SSD
2) Copy and paste many parts at different rotations and orientations
3) Over time, observe that pasted parts no longer preserve their alignment
Steps to Reproduce (not specific, sorry!):
1) Spend an amount of time building ships in the SSD
2) Copy and paste many parts at different rotations and orientations
3) Over time, observe that pasted parts no longer preserve their alignment