Dropbox for Android has a serious flaw

It seems to degrade the quality of images, even ones that aren't even 1 MB. I uploaded an image with a gradient and on both my Android devices there's bands of color where the gradient should be. The web client doesn't do this, and I uploaded the same images to Drive and compared on the same device and Drive did not exhibit the banding. What's going on? Is there some bad compression going on? I hope Dropbox fixes this sooner rather than later or I may move my future media files to Drive.