Hi Sharon and welcome to the forum.
Are you using a database file that is the result of a query or are you using the query directly to populate a Monarch table?
Are you applying an existing model? (Sounds like you might be.)
Does that model have any filters in it that might be active when reading the database into Monarch?
Do you see any error messages?
Those are the first questions I can think of, there may be more based on your answers.