EPDM 2012 and AutoCAD 2007 Attributes

Im having an issue right now where I can add a 2010 format AutoCAD dwg to the vault and it will populate the block attributes from variables properly, yet if I take the exact same file and save it as a 2007 format dwg then add it to the vault, it won't work. Using EPDM 2012 SP3.

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