I was also having the issue where my satellites would spin out of control while using the flight computer like some have reported. I was running the latest release of remotetech (1.7.0). Now I have many other mods installed so I was checking to see if it was an interaction issue with something else. Ferram Aerospace Research is usually one I start with given how much it changes the game. As soon as I removed it the spin issue went away. If anyone is having that spin issue and has FAR install might want to give this a try.