Think I mentioned this in a thread or two. Because of the way Orbiter handles time compression, it is best to switch to real
time when you have to use the RCS system. If you don't you will get wild instabilities in the way your craft handles.
It is not a bug, and with the exception of my first sentence, you are doing nothing wrong. It's the nature of the beast. One
analogy is to think of it in terms of graphics. In realtime you can ramp your monitor to quite high resolutions and get
phenomenal images, but in time compression it is like turning your monitor to 160x120, not much to see. When you switch back
you may find yourself lost.