Auto-mute? – Facebook Review

I cannot figure out why some videos play the audio and others auto-mute after only one second of sound. This is extremely frustrating. If I choose to click on a video, I should be able to hear it as well without doing anything additional. And yes, my volume is up, I am off silent mode on my phone, and I don’t see an option on the app for an auto-mute turn off. Please fix this!
Review by S3mpra on Facebook.