Transmission failure while e-filing "601ERRV:? PLD_01 - ?:? - Unable to splice payload" in Lacerte

This article explains what to do when the following error is triggered while attempting to e-file:

"We are having difficulty recognizing the data you are sending. Please try again. - 601ERRV:?, PLD_01 - ?:? - Unable to splice payload. Indicated length greater than actual length."

This error may occur if:

• You're trying to e-file a return with Send PDF attachment with federal return set to Yes but you aren't sending the federal return at this time.
• The PDF file attachment is damaged.

To clear the transmission error when transmitting a state return only:

1. On the Clients tab, either double-click the client to enter or click once to highlight the client and then select the Detail tab.
2. Under General, select Electronic Filing (Screen 4 in the Individual module).
3. Click the PDF Attachment button.
4. Look for Send PDF attachment with federal return and set it to No.
5. Repeat for any other PDFs to be transmitted with the state return only.
6. Attempt to transmit the return again.

To clear the transmission error when transmitting a federal and state return (the PDF is corrupted):

1. In the Detail tab, select Electronic Filing (Screen 4 in Individual).
2. Delete the PDF Attachments.
3. Return to the client list.
4. Open the return to the details tab.
5. Go back to the Electronic Filing screen and re-attach the desired PDFs.
6. Attempt to re-transmit the return.