Playing a video and pushing volume up with hardware buttons, slider is going to the right as expected.
If I now push volume down the slider will still move to the right. With the next push, it will move left.
When pushing up again, it will move one to the left and then to the right.
This is on iPhone X and iPad Pro.
I cannot reproduce the issue 
Does it always happen with both video and audio? Could you share a video or something where we can see the bug to understand it better?
Thank you!
I saw this as well. It seemed to be a click or so behind, i.e. I hit up-it doesn’t move, I hit up-it moves up, I hit down-it moves up, etc.
This is still happening in the latest beta (5.0.1). Behavior is as described above.
I play a video and the hardware volume buttons are always 1 step behind on screen.
In the linked video (Google Drive), I hit the volume up button 4 times, then the volume down button 4 times.
The volume bars reaction to each press: nothing, up, up, up, up, down, down, down
I have the same issue on a IPAD pro and Iphone 6S so its still happening. basically
volume at 50%.
Press Up and the volume gots to 45% Press Up and Volume goes to 50% and press Up again Volume goes to 55%
starting again at 50% PRess down and Volume to 55%, press down again and it goes to 50% and press down and it goes to 45%.
I think this started happening across a number of apps in iOS 11.4.
As reminder folks, it’s ALWAYS helpful to include the version of iOS on which you’re seeing the problem 
OK so I have reported this issue via the Beta build system, whcih includes the logs from my devices, but I’m happy to play long with the IOS version. 11.2, 11.3, 11.3, 11.4 11.4 Public Beta 1, 11.4 Public Beta 2, 11.4 Public beta 3, 11.4 Public Beta 4
