Yes, I noticed this a couple of days ago. The ASC works fine in Windows, but on my Mac, it keeps insisting that I have not updated 5 of my VC4 synths, but they all seem to work well in my daw. Hoping an answer is forthcoming.
Strangely, I'm on El Capitan as well, no anomalies whatsoever.All VC5 instruments as well as Spark 2 are up to date, installed and activated in ASC, and fully function both in DAW and in Standalone mode.