PGP SDA - Number of extracted objects does not match footer

We recieve PGP SDA's from our clients on a regular basis.  Usually these SDA's are extracted on 32bit Windows XP without issue.  With support for XP coming to an end, we are moving XP out of our environment.  

We have found that a set of PGP SDA's received from the client will extract without issue on Windows XP, but fail to extract on the following Operating Systems:

• Windows 7 32Bit  <-- we did this just to make sure it wasn't a 32/64bit thing.
• Windows 8 64bit
• Windows Server 2012 64bit  (Our new 1U machines) 

The PDP SDA opens, accepts a password, and then begins to extracting.   At the very end we receive the error message: "Number of extracted objects does not match footer"

Has someone seen this error before and can they explain the issue?

Thanks