I noticed that this problem only occurs when saving a new database record, if KeyValue does not save it works normally.
When I save a new item in the database it does not update UniDBLookupComboBox text when using KeyValue.
I tried using the UpdateText method of UniDBLookupComboBox, when I did that the text updated with the description of the new record, but if I don't save any records and trying to use KeyValue doesn't update the combo text.
Any idea?