Error Unable to play this media file

This is a strange one i have an iPhone 6+ and an iPad 2
The iPhone plays the files the iPad will not.
Side by side, same network same app Version check through both cant find anything different.
Cant find anything different
I have not used my iPad in a little while to watch the movies but it used to work flawlessly
Now it will not play any of my movies
Anybody had this issue?

oops posted too soon but anyway the issue was in the app itself
I had restored the iPad previously maybe the app had a bug i just uninstalled and reinstalled and all good now.
This might help someone with the obvious which i forgot to try first


Thanks for coming back and sharing your solution.

Hope this helps other users.