4.0 Crop doesn't work in preview

Thanks so much for the bug reports! (This one and the others posted).

We’ll be checking out the others as a team tomorrow, but this Crop behavior is expected for now.

We’ve disabled cropping in Previews to avoid some unexpected behavior in the new UI, but it’s slated to be added back in soon. In this release, the area indicator matches the area that is exported after the Crop is applied.