1.2 broke some of my designs with scaling errors. I have not had a problem with new designs. 

I usually start with a basic hull and I do not use the start cube often. Someone posted that if you don't keep the cube in the center of your design, it will do what you have going on. Maybe that is the problem maybe not.

My big problem with Steam is it periodically will not let me upload designs. Just tells me it can't upload at this time.

Thanks for reporting.

I have discovered that some ship designs will break the workshop uploader and you have to restart c++ to fix it. Until it is fixed you can't upload ships.

I am not sure why certain ships cause a problem, but my theory is that it is caused by starting a design from a previously downloaded design. I start most of my ship designs from a hull and not the start cube. If it is a game hull, no problem. Occasionally, I will start with a design I downloaded from the workshop. I completely change the design, deleting and adding parts, to the point that it is unrecognizable from the original. If I try to upload this ship to the Workshop, it seems to screw the pooch.

I have not tested this theory enough to  be certain I am correct. I would be interested to hear if anyone has uploaded an altered  ship previously downloaded from the workshop.

I hope this is not too far off topic, since it involves ship design. It is not my intention to hijack the thread. 

I've had issues, where, after I design a ship and save it, it does not show up in my build options.  Not using any resources, just basic builds.