I sometimes use Youtube tutorials to learn software skills and I’ve found that when I pause a video and then unpause it some time later, the sound is gone. The video is still there. Refreshing the window usually does not solve the problem.
This can occur even if no sound has played in the mean time. It can occur after a 30 second pause or a 30 minute pause. When it happens repeatedly in a short amount of time, it can break the flow of learning.
I am using Explorer and Windows 7. It happened before and after I started using AdBlocker and so it isn’t related to it.
So, what could be causing that and how can I prevent it from occurring?