When I check for "Out of Date" assets, I see this, yet the "Download" or even the "Download this version" in the context menu is grayed-out. How do these items get updated?
Any asset that is built-in (or Payware) and is flagged as having a newer version available has to be downloaded by first selecting the "List Asset Versions" option in the popup menu. Then, from the resulting list, select the latest "Available for download" version and download that.
Possibly because the asset has been renamed, I noticed that while updating some assets yesterday. You can check to make certain they haven't "disappeared" by running the TODAY filter in CM.