Incorrectly resolved DXCC are often subject of a discussion. Problems are mostly with a call from US posessions (AH0U, KH2D, KP4Q etc. They ae very easy to solve - just press F11 and the entry correctly changes to USA and the state. Also you will see the County field filled with county information. This works with Callbook support defined, pointing to HamQTH.com which is connected to the FCC database and should be always actual.

I highly recommend to check any call from US posessions with F11!

73,
Martin, OK1RR