That one thing I talked about where I don't have any clue what these angle are relative to.

[deckblad]

I still can't replicate the issue other than to say "Mirror parts, maybe, then set min-max values, then manually adjust position, and then move the mirrored parts. But this is what I'm seeing. Rotatrons and Hinges where the 0 position value moves over time.

http://cloud-4.steampowered.com/ugc/22839855466945507/875B175B84CFAD937C030A438563388FBFA4B738/

Note the tweakable context menu shows "Rotation: 0" on a 90 deg pivot where it's definitely not at the zero position.

[deckblad]

It doesn't even have to be a symmetry part. I'm seeing it happen on individual parts now. Something is throwing off the neutral / 0 degrees / center point

[deckblad]

I've removed all mods except stock and IR,Tweakscale,Toolbar,MM and I'm still seeing the issue. Could be related to setting min/max values when the part is already outside the new range.

http://cloud-4.steampowered.com/ugc/22839855478958027/772B94A94EC16418B5141165D99804556C0CC916/

[deckblad]

Ok, confirmed. Issue is caused by setting a min/max value that's less than the current part rotation. Once a min/max is set and the part is actuated in VAB/SPH, the rotation value changes to the new min/max but the part remains at it's larger-than-min/max rotation

[deckblad]

Possible fix, don't allow user to set min/max to a value closer to 0 than current rotation.