So basically a random bug, updated to 6.1 and now if you use dual messenger and go into the dual messenger internal storage, you won't be able to select and play any videos stored in that part of the phone storage. Whenever I click a video stored in my internal storage (dual messenger), a message will pop up saying file not found. If I move the file to the normal internal storage and again select the file in the file explorer it will open as normal in the video player app.
It's only started happening since the last update so if anyone else could try recreated it would be great.
Thanks
Shabz