ARUNKMENON Thought I was the only one with this issue. And the annoying thing is it’s very random so we can’t even submit feedback on that issue.
As per my observation it happens when the phone’s battery is below 15%, plugging in the charger while using an app like YouTube or prime video. Same won’t happen after the reboot even with the same condition.
Try to observe the pattern and let me know, I’ve already posted a thread about it, maybe you can comment on that one. If several people report the same issue, they might look into it.