SW14 SP1 ASSEMBLIES NOT SHOWING NEWLY ADDED PARTS

Hi all,

   SW14 SP1 when adding parts to a large parent assembly and then dragging the same parts into a smaller sub assembly in the feature tree, parts remain invisible in that newly opened sub assembly until I do a multitude of rebuilds, isolates, control Q, etc.  Anybody else having this issue?

SolidworksAssemblies