Has anyone run into this problem before? When using SAS Stability Assist, it works normally if you are set to prograde. However, if your SAS is set to anything other than prograde (normal SAS in an arbitrary position, retrograge, anti-normal, etc), then any reaction wheels including those on command modules will work normally, but engine gimbals will spin you toward the prograde position no matter what orientation you are in. As a work-around when this bug happens to me, I can either orient myself without using SAS, or lock my engine gimbals in order to thrust and not spin out. On ships this bug occurs on, I've tested locking out the gimbals on just certain engine types, but it appears to affect the gimbals on all engines at the same time of any type. Mods I have installed: (nothing that controls the ship or changes physics) ScanSat RemoteTech StageRecovery HotRockets (& SmokeScreen) I used to have FAR installed but I uninstalled it a while back due to performance issues (lag). This is what my ship looks like that it is currently affecting. It has affected multiple launches of this ship: http://i.imgur.com/gxCw355.png This is the .craft file: http://puu.sh/jehpi/557fb28edb.craft This does contain parts from the RemoteTech mod. Now just on a note, near the very top of this ship is a unmanned command pod in addition to manned command pods. I launched more ships that had that configuration and the problem did not affect them. It's just once an a while a certain VAB build of a ship gets the bugged SAS problem. Here is another .craft of a vessel with the same command+unmanned modules and reaction wheel which is NOT affected by the bug: http://puu.sh/jehwx/e8a3a5b1d1.craft Edit: After loading the craft that had this problem in the VAB and fixing the position of some solar panels that inexplicably explode on the launchpad, I saved it as a different name. After launching the newly-renamed vessel, I soon realized that it did not experience the SAS problem. Any more information I find about this bug I'll try to update here for others. Here's the renamed vessel that is almost exactly the same that does not have the problem: http://puu.sh/jekz4/98b6ff1377.craft