So, it sounds like it seems to have worked for some of you, but not all of you.
It's expected that your top songs, top artists, etc aren't working right now, but your total plays and recently played should be updating.
If the very same song will upload from the software but not from the device (after ensuring your device is linked to your tag), we may need to look more deeply into what's happening for you.
Jessica Zahn, Zune Social Program Manager ~ This posting is provided as-is with no warranties, and confers no rights.