No, but I've had an issue for a few weeks now where it says there's one update, but when I click on the notification, there are no updates to install. I'm still running the RP, so this may be fixed in the RTM.
I've seen the exact same thing as spivonious in the release preview.
In the RTM after initial install it showed that it had 7 store updates. I had it install all 7. It did so without issue.
Did a complete Windows 8 re-install and working OK now!
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