Community Server Content Parts have been around for a long time, slick controls (still, after all these years...) that enable dynamic updates to a Community Server page content area. My clients can't get enough of them.
I was dropping one on a new Community Server page sidebar column the other day and the darn thing wouldn't display. Did I turn off the left column by not adding it to the .master page? WHAT WAS HAPPENING TO ME????
Then I saw it--or didn't see it, as the case would be. There was no ContentName property, as in
<CSControl:ContentPart ID="flashContentPart1" runat="server"
ContentCssClass="CommonContentPartBorderOff"
ContentHoverCssClass="CommonContentPartBorderOn"
ContentName="homeFlashLeft">
<DefaultContentTemplate>
....
So if you find yourself as Invisible Content Part Man, adding a ContentName property should restore the fidelity of that mirror's reflection once again.