After you file

Sorry is I wasn't clear enough. 

I completed my federal taxs & e-filed for a $4800 refund. Several days later, I opened TT to review my state taxes & TT wanted to update. After the update completed my refund changed from $4800. down to $3937. as shown in TT.

I discovered what changed in TT . After the update, TT needed me to check a box regarding a 1099-R RMD. After checking the 'No' box, the refund went back to $4800.