Why don't clients receive the proposal attachments?

When a proposal is published, you have the choice to check or uncheck the box "Attach the PDF of the proposal to the email". If the box is unchecked, the client will not receive the proposal in PDF format.

However, you can click on "Resend proposal" to send a new email to the client with the PDF proposal attached. All PDF documents related to the file can be viewed in the download box of the request.