PDF File Uploaded to SharePoint Appears as an Unknown File Type

I configured a flow to save PDF attachments from incoming emails to a SharePoint folder using the Upload File action.

The flow runs successfully, and the folders and tracker information are generated correctly. However, the PDF attachment does not appear to be saved properly in the Sales Documents folder. Instead, the uploaded file shows as an unknown file type and cannot be opened.

What could be causing this issue, and how can I fix it?