Hi @WI FISHY Have you tried renaming the file and/or description of the PDF? If you selected Other in the Type column, enter a description of the attachment in the Form/Schedule and Description column. Here's some articles with more information: 

-How to attach PDF files to federal or state electronic filing in ProSeries
-Attaching PDFs to business returns for e-filing in ProSeries Professional
- IRS Recommended names and descriptions for PDF files attached to Modernized e-File (MeF) business submi...

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