App Store does not update my applications!!

[jwroycechoi]

Using Yosemite public version on my MacBook Pro 13.
My Mac App Store does not update my applications, including all the iWorks updates. The update stays on 'waiting' mode and does not get installed. Tried rebooting the laptop, but still doesn't work.
Any kind of help will be appreciated. Thxs

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[Macaddict16]

I am having the exact same issues. Cannot figure out how to get them to update. Can't even install preview 3 that was released today.