This mornings votes might have been yesterdays votes.
When I'm in the office early, I don't have any votes, because I usually spend all my votes during the day. After an hour or so the significant date changes and I get new votes.
Or were you able to vote on the very same nodes again?

neophyte

Update
I wish the coffee-machine would be a bit faster ...
I do not seem to be quite awake this morning.