Canon 5D Mark III "Add Cropping Information" Importing into Lightroom CC 2015.8

I hope I'm not alone with this - but I recently bought the 5DMkIII and set my camera to "add cropping information" to show a 5x7 aspect ratio. It was still taking photos in a 3:2 ratio so I assumed this was just a "guideline". Using Photomechanic, the photos look fine as I'm culling, and then I import into lightroom and my photos automatically crop to a 5x7, without me having the choice to reset or move the crop! I am losing all information on the edges and need them back! Anyone with a similar issue and fix? Or am I screwed?