I have some issues with rotation tool.
Every time I rotate and object, I lose pixels.
I need few attempts to make a good rotation, I try rotating object inside the matrix, outside the matrix, or after modifying the object or after modifying another object, or rotating two objects at the same time, I obtain different results, I finish making the fixes by hand again and is a little bit tired. By the way, I'm rotating by 90 degrees every time in different axis.
How can I make a good rotation?