[Solved] Posing Symmetry "Left to Right", "Right to Left" and "Swap Left and Right" Stopped Working

Joe827

While working on scene using V4, the posing Symmetry "Left to Right", "Right to Left" and "Swap Left and Right" commands suddenly stopped working on two joints, rShldr and rForearm

Scenarios:

1) Click on either the rShldr or rForearm and execute any Symmetry command R to L, L to R, or Swap -  nothing happens.

2) Click on either the lShldr or lForearm.  All Symmetry commands work.

This has happened occasionally in the past, but I keep forgetting to ask for help.  Can you think of anything I should check?  Thank you for your time.

Joe827

There was a stray article of clothing that had gotten parented to my figure's rCollar bone.  After re-parented to the base of the figure, the symmetry commands work again.  I don't know why that would make a difference, but at least I know how to fix it if it happens again.