Can anybody please help explain why the curve driven patterns within my profiles are not rebuilding in the assembly until you manually edit the part rebuild,save then exit back to the assembly? In the assembly to control the length of the profiles please edit the sketch called "Layout" and edit the LH/RH Panel dimensions by 75mm increments. Once you exit you will see the holes will not rebuild and update to their new positions. Only when you open/edit the parts individually will then rebuild to their proper locations!!! This actually is a completely stripped down version of a much bigger and complicated assembly (I had hoped that by taking everything else away it would work but clearly not!) Please help?