April 2019 TT Said I Owed $1800 Federal but Now after all updates says I owe only $1178

Does this make sense to anyone?  I actually made a copy of the TT file and the original said my FED burden was ZERO vs $1800 in april.  Then I opened my backup and that one said I owed $1178 vs $1800 in April.  I'm freaking out here.  What could have happened to the files?  And I'm NOT getting any corruption errors/warnings.