Update: This was fixed in the 2/13/2020 update:
In some instances, records are being skipped with the message " Arithmetic operation resulted in an overflow " when using the option to map the Student ID from the State Student ID. When this occurs, there is no indication that the records were errored or skipped, however they are listed under the Total Records column as "Pending" and will never be inserted. At this time there is no workaround, other than updating the source file with the Student ID.
Programming is looking into the issue, and we will update this notice when it is resolved.