Try mo to, nabasa ko sa link na binigay ni pareng Pink Diamond
"Go to Settings > Device Maintenance > Battery > Click on three dots top right for more options and then select Advanced Settings > Disable App Power Monitor
THIS HELPED ME - IT WAS 100% either the App Power saving mode which came with the last update OR it was my bluetooth headset connected to my Laptop picking up other sound and pausing the video. I turned off my bluetooth and turned off app saving power and now works perfect. Thanks.