Hmmm. This appears to be a genuine bug.
I see your synth in Bing Maps Silverlight Beta (it's actually the featured synth when I search for Matthews, NC), and I also see your synth on the old map page here on the site ( http://photosynth.net/geoexplore.aspx ) when I zoom down to Matthews.
For some reason, though, when using Bing Maps AJAX, your synth does not appear when exploring User Contributed content (even when filtered to Photosynths only) for Matthews, NC. Somehow the Photosynth feed for Bing Maps AJAX has either lost your synth or is using an older version of the feed for a few hours.
If this hasn't resolved itself in a few hours or I can duplicate your problem tonight, I'll try to get the Photosynth or Bing Maps team to look at this if they haven't replied already.