I don't see this behavior in any of my production or test clients. What sync protocol is this using, and is it only affecting this user?

MAPI and afaik only affecting one user.

I tested MAPI as well and I'm not seeing it under any of the accounts I usually test under, nor any newly added ones, so I suspect this user might have something going on in their account unfortunately. We should be able to help narrow it down in support :-)

Tony has been doing some testing on the account and the issue has gone away afaik.

Well that's good, and bad as you're well aware I'm sure :-P Glad to hear it is working though. Just for the sake of clarity; could you update the title of your post to properly reflect this as an account issue rather than a build/version issue?

Done :)

Thanks Brian :)