Uploading photos from iPhone 7 library (iOS version 11.3) is not possible.
Is it possible it comes from the new format HEIC of Apple ?
Have you an idea or a solution to solve this problem ?
You cannot upload video from Iphone through default rtMedia set up. Iphones create MOV video files and rtMedia only accepts MP4 video by default - you can fix by using the transcoding plugin https://rtmedia.io/transcoder/ and test with free plan - it will then allow video upload directly from Iphone. I ran into same issue and this quickly resolved it.