Won’t work with iTunes songs – Ringtone Designer Pro 2.0 Review

So it won’t play any of my iTunes Library. I know you have to have the song on your phone and not in the cloud. But it doesn’t play any iTunes song I have on the phone. But it will play songs I’ve pulled from YouTube. Not sure what’s going on but I would like to be able to use this app. I’ve loved this app and never had an issue until the new os came out. I’m on the latest iOS. Please fix this issue. Thank you
Review by plzer on Ringtone Designer Pro 2.0.