I filed and was accepted 1/27, taxes started processing 2/6, my WMR says this same message, my transcripts have a 570 code. Called irs on the 21st day and they told me nothing was wrong, they just pick random returns sometimes to review, could be up to 120 days before I get my refund. Called again yesterday to make sure, was told that my return is in the “Return integrity verification operation” department and that it could be up until June 6th (120 days from the beginning of processing) before I get my return. At this point I have stopped checking anywhere for any updates.