Yaw not working.

[GGaF]

I am working on a SSTO and can't seem to get the yaw to work(pitch and roll work). I have tried using fins with built-in control surfaces, suh as the FAT-455, and I have tried putting on a fin and adding the control surfaces seperately, and neither will work. The yaw indicator at the bottom left shows that I am yawing to the left and right, but the control surfaces don't move. I have tried disabling everything but yaw, and can only get it to work when I deploy it and use the yaw action group to change the angle at which it deploys. I would fly with that fix but it does not return to neutral automatically and that is a feature I would like to use.  Attached is a picture of the SSTO.

[Vanamonde]

That's a pretty massive plane. It likely needs more force or "control authority" anyway. But as for the control surface not moving, do you have the same problem on smaller planes or is it just this one? What happens if you delete the rudder (to ensure that no improper settings have been applied to it) and place a new one in the same spot? 

[GGaF]

The rudder seems to work on smaller planes, I have deleted the rudder and replaced it, and I have also tried it with the rudder not clipping into anything.

[GGaF]

An update to the SSTO, I am now using the attached SSTO, and am having the same problems. I made it from scratch, and set the authority to minimum and maximum, and used the Big-S Spaceplane Tail Fin and Delta wings with control surfaces, and they also did not work. Tail fins seem to work on smaller planes, but never bigger ones.

[GGaF]

@Vanamonde I've been experementing and it is due to the position of my probe core. Since my probe core is facing upwards I am assuming it is messing with the way the control surfaces have been moving. placing the probe core facing forward has fixed it. Thanks for the help though!

Edited July 31 by GGaF
New information eleminated the need for the written question.

[Vanamonde]

Oh yes, that will do it. The airplane thinks it's lying on its back.