We have the same problem on a few of our sites.
Then going into media and pressing on Edit Image, or uploading a new image and then pressing Edit Image - all we get is a blank spot.
I can see the uploaded image on the right. But can't see the image I need to crop.
Just like in this example:
I know the problem might be in functions.php with spacing, but - it works just fine on my local, and on staging( which the same as live ) but the actual live site is broken.
We are using bones as base to our themes.
Any help, suggestions, recommendations will be greatly appriciated.