As the title says. I am migrating all images to S3 but the cropper doesn't seem to work with it.
Hmm.. The cropper doesn't really care (shouldn't) where the file is - it stores the cropped information on the field's assigned table along with the file ID only. Can you be more descriptive of what you are doing and what the error / problem is?
I think the issue was caused by another field that broke the JS