No sound on iPad Pro running latest iOS

I seem to have no sound any longer using iPad Pro on the latest iOS updates …been like it now for last few updates, anyone else having this problem and is there a way to fix?

You’ve probably checked this but is the device on silent, and are the volume settings in Infinite Flight turned up?

This has happened to me before, what I do is press the home button/swipe to the home screen and go directly back into the app. That should fix the issue.