This is pretty ridiculously horrible and totally not normal.
Here's two great PDFs you should read if you're looking for some basic information about marketing on Facebook:
Facebook is always moving fast and can sometimes get behind in processing everything. Normally, you should expect around a 48 hour delay.
Instead of updating only our awesome customers, we figured we'd give everyone a simple site to see how far behind you should be if things ever get bad. :)
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