Hmmm…. this must be one of the most stupidest bugs I have ever seen in SharePoint.
So what’s the deal?
I’ve got a sitecollection in SharePoint 2010 that will eventually contain about 35 subsites. After creating the first 18 subsites, my global navigation showed only the three subsites I wanted the enduser to see. I hid the other 15 subsites.
My global navigation bar looked like this:
After added an additional 10 sites (all hidden from navigation), I suddenly noticed the menu item “Speaker pool” was gone.