After you file

@dyer111777 - since it was put under review the day it was received, the normal 'cuprits' for that are lines 27a, 28 or 30 of Form 1040 - could be something else, but from what the IRS website states, those line items do creates issues (although 6 months is a long time!).  I would just be patient and check the transcript and WMR tool once a week and see where this leads.  it is frustrating!