My phone plays music fine, but not videos. How do I stop this?

[AC Question]

(I already asked this, but I don't know if it went through, so I'll ask it again.)

My phone plays sound on Amazon Music fine, but not on YouTube or DailyMotion. The video part plays fine, though. I thought it was just a problem with my headphones, but no, it's a problem with my phone. How do I stop this???

(My phones actually an HTC Desire 626.

Also, I disabled the Google App and forced Google Chrome to stop recently.)