Craft spinning in space

[WolfieKSP]

Whenever i launch my craft into space, the first stage works perfectly the second one also works great for some time, but then it starts to yaw weirdly, It's *almost* perfectly symetrical, and does not care which side I yaw, ksp reads me yawing in seperate directions, but the craft only rotates due east, whichever way I yaw in.  I have only a pug engine and a inline sabilization unit, oh and prograde works, (well worked) but then it just started spinning faster and faster despite me choosing prograde (it did have connection and EC). From the more important mods I installed RSS, Simple fuels for rss, Mandatory RCS, and Testflight (which doesn't show any failures)

[DeadJohn]

Your problem of "spinning faster and faster" might be phantom forces. That problem can be triggered by offset parts or by EVA construction.

Offsetting and EVA construction are usually safe IMO, but sometimes the game gets confused and acts like one part is gently pushing against another part. The vessel accelerates forever.

One way to maybe fix the problem is to go into VAB and detach then reattach parts.

[WolfieKSP]

Okay, idk what was that, my craft was just a probe (I haven't put a kerbal in space yet) now it just seems to be a mass-offset isue (I didn't make the craft symetrical enough)

3 hours ago, DeadJohn said:

Your problem of "spinning faster and faster" might be phantom forces. That problem can be triggered by offset parts or by EVA construction.

Offsetting and EVA construction are usually safe IMO, but sometimes the game gets confused and acts like one part is gently pushing against another part. The vessel accelerates forever.

One way to maybe fix the problem is to go into VAB and detach then reattach parts.

Either way, thanks for the answer, it might be useful in future!