Audio / Headphone jack issue



Hello. I am having an issue on my Moto E4 and Amazon HDX 8.9 android devices. On both of them, when I plug in my headphones all the way, only the left side works. I have to have it pulled out before the last notch to hear from both sides. This has only started happening for the past week or so. I have tries different headphones on both devices. I have also tested different video playing apps (Youtube and Netflix) on both devices with no issues with the headphones. Assistance would be appreciated.

Plex verson (4c9e7618)
Andorid 7.1.1 on Moto E4
Fire OS


I wonder if you are having something going on with the way it is being encoded, because other than the head phones that is the only common factor between the two devices.