When I add images to my post, they sometimes don’t appear in the mobile app on Android. I only see them when I edit the post. It probably has something to do with the size of the image. If I load smaller versions into a post, they are easily loaded. My tests included images in JPG format with a resolution of 6542x4365. File size at about 15MB. I assumed that the images would be automatically reduced before uploading and that EXIF data would be automatically removed. Obviously, this is not so. I was able to download the images in the browser. All Exif data was included, the file was also identical in size.