Lightroom automatically crops some of my images

[maudg50047702]

I have some of my images, taken with a Tilt Shift 24mm which are automatically cropped when imported into lightroom.

See first the native images (with the white board on the left side), and the imported images in Lightroom. It looses 40pixels.

Do you know how I could get the native file back by any chance ?

At the moment I have to make my sélection in lightroom and the bring the image in capture one which keeps the native file.

Thx in advance for your help.