Microsoft Access Control can't be edited: it's bound to unknown field "unitofissue"

I added two new fields to a table.  I placed two combo boxes on a form and when I try to enter data into them I get the error "Control can't be edited: it's bound to unknown field "unitofissue"  or Control can't be edited: it's bound to unknown field "medicalmeasurement"

Both fields are listed in the "add existing fields" and the record source has them both.


SELECT MedicalMedications.MedicalMedicationsID, MedicalMedications.SoftSlip, MedicalMedications.ProcedureDate, MedicalMedications.ProcedureEndDate, MedicalMedications.MedicationsID, MedicalMedications.Dosage, MedicalMedications.DailyQty, MedicalMedications.UnitofIssue, MedicalMedications.MedicalReason, MedicalMedications.MedicalMeasurement, MedicalMedications.Location, MedicalMedications.VetStaff, MedicalMedications.MedicalNotes, MedicalMedications.Expiration, MedicalMedications.Manuafacturer, MedicalMedications.SerialNumber, MedicalMedications.Type, MedicalMedications.Type, MedicalMedications.TagNumber, MedicalMedications.UnitCost, MedicalMedications.spcaaccept, MedicalMedications.spcadecline, MedicalMedications.QtyIssued, MedicalMedications.MedsFollowup, MedicalMedications.MedsFollowupDate, MedicalMedications.VCAInvoice, MedicalMedications.VCAInvoiceApproved, MedicalMedications.DeliveryRoute, MedicalMedications.Measurement, MedicalMedications.MedicalCondition FROM MedicalMedications;

I've added many combo boxes to many of the forms in the database and have never had this error.

What is wrong?