I had this issue tonight, flying EINN-KJFK in the A318. Loaded 18000kg at EINN, landed at JFK with the FOB indicator and Fuel page both claiming I had 2980kg on board, except I'd had that excact value since Newfoundland, however the total fuel burned value on the Fuel page correctly indicated the burned level of 17700kg (Yes, I landed with 300kgs... I apparently need to tweak the bias in PFPX for such long distance flights). I had not run the updater, but I bought and installed the product today so this was version whatever is currently packed in the installer.
Prior to departure I had some issues with my graphics driver and used a save-file made just prior to push to avoid re-preflighting after a few sim restarts (though I had to preflight everything anyway, panel states didn't save). I also used the aircraft state page to set "ready to taxi" to expedite the departure as I had to get around to something else. I know all of these things are in general dumb decisions if you are aiming for a stable flight, but I thought I'd use this flight to see what gremlins would appear following such abuse.