This is a duplicate issue of another post, which was marked as resolved but never actually resolved.
We have a responsive site using USP and the uploading functionality works beautifully on desktop sites. Images are being uploaded to the library and into the featured image area. Everything is displaying properly on our templates as well.
The problem is on mobile. Testing with a Samsung Galaxy4, after clicking on choose file, I'm given a choice to use my Camera or Video. There is no option for using Gallery, which is where all previously taken images are stored. If I select Camera, I am able to take a photo and its file name appears next to the choose file button just like on desktop. However once the post is submitted, this image never appears in the WP admin. It's not attached as a Featured Image, nor is it in the Media Library. The post content does submit fine, it's the images that are missing completely.
Could this issue please be looked into further? I will do some further testing on other devices in the meantime.