When you mail in a return with a payment the check goes to one department and gets posted and the return to another.
As already mentioned ... due to the reduced staffing in the wake of the covid shut down certain things needed to be prioritized so stimulus checks and returns with refunds had priority. Returns that have balance dues were put on the back burner ... so once they are processed thru the system the transcript will be updated and there is nothing you can do to speed up the process.
