There are many times where FIMS will accept invalid date formats and insert them into the database. For example, if someone mis-types "12/31/2015" and uses "12/31/0215", this can be seen in the database as "0231-12-15".
Reports stop failing as Progress DB returns "Invalid Date Format."
Have FIMS validate date fields for a valid date format on all Date-type fields before inserting or updating a record.