Ok, the headphone jack is still broken.
When i use channel 1 i can hear the sound just fine, loud and clear in both left and right headphone, however when i’m using channel 2 i can only hear sound in the right ear, and when i wiggle the plug around there is the same kind of static as in the video, the sound cuts off, but now the left ear is completely silent now even if i pull the plug halfway up. This goes for both the small and the big headphone jack.
If you look at the clip i uploaded in the original post i was using channel 1. Which means i can’t seem to reproduce the same error as before, either way there must be something wrong with the hardware.
I guess I’m going to have to send the mixer back tomorrow after all…