Hi Matt!!
BIG CLUE (perhaps!!)
I had a "middle of the night" idea: Start a totally new file in the key of F# and type in an f# chord.
Result: Gb
THEN
I changed the key to C
Result: F#
I went through all the keys (key change only, no transpose) and found certain keys that respelled the enharmonics properly and other that didn't.
The key changes that changed my F# chord to a Db were these: Db, E, Gb, Ab, B, C#, F#,and G#. Hmmmm.

Is this maybe a bug that I should report?

Very Thanks Again from Marty (off to practice my flugel again)