It seems that this problem is affecting all public beta sites, except for:
- Game Development
- Electronic Gadgets
- Geographic Information Systems
I reported this on one of the beta meta sites. Per Jeff it is normal behavior immediately after a deployment.
Will go away in 10 minutes.
edit: since this question keeps coming up, I changed the stats so they will say
instead of all zeros. Hopefully that's clearer that the solution is to sit tight and wait 10 minutes.
(although, this could persist longer than 10 minutes if API is down for some catastrophic reason)