We've just gone from beta to production on our datasynchronizer.
Old version was 1.0 (Beta) Build: r1.90

After we've done the reinstall, contacts are not synchronized.

We've created a new machine with the new software, and then copied over certificates (so the users didn't have to have their phones relearn it) and reused the trustedkey to GW.

Looking in the console we can see that it says that contacts/xxx is pending, but 0 is synced.

Mail and calendar gets synced immediately.

I don't see any errors anywhere.