rename part - assy doesn't show new name?

having an issue here - renaming parts using SW Explorer - go back into the assembly and the parts are there, but the feature tree shows the old name...it doesn't fail, and you can right click, open part and the correctly named part opens.

searched the KB, and CTRL-Q doesn't fix it

SW2009 Prem 5.0

SolidworksAssemblies