M2 OEM LED Headlight Flicker

Hey everyone, just bought a 2021 Freightliner M2 custom chassis with stock OEM LED headlights. My driver side headlight flickers shortly after the headlights get turned on, and don't do it anymore after, until the headlights are turned off and back on. I've looked at the harness; no chaffing exists, no shorts, and all the pins at both sides of the harness look good (not burned). I've contacted Freightliner and it's not in warranty anymore, so I can't go that route. Has anyone had this issue, and if so, what caused it and how did you fix it (if you didn't just replace the assembly)?

Here's a link to youtube to show you what's happening:

 

I'll take another look. I didn't find any corrosion but I did forget that they're powered by different modules so I'll look into cleaning both of the sets of connections. Thanks for the advice!

 

Ground block is perfectly clean, as if it just left the factory. The pins to the back of the headlight fixture are clean as well, no signs of damage, burning or melting.