email has no attachment

I have randomly received emails in the past that I know have pdfs in them but mail on my powerbook pro says they have no attachments (no paperclip and no attachment). The emails have been coming from an Exchange server.

This morning I have stumbled across something that might have something to do with the "no attachment" issue.

If I check my email on either my iphone or ipad before my macbook pro and view the pdf on either device or both then go to my mac, it shows the email with no attachment.

Has anyone else had this problem?

If so can you redownload the individual email to get the attachment on the mac or is there a setting or rule that can fix this issue?

@Apple......if this is a bug then you should really look at addressing it as this has been an ongoing issue for a versions of mail now!!