I think i found the problem.
Stupid gold 3.5mm connectors
Looks like the 3 connectors on the front-left ESC were able to touch and possibly short. I was balancing motors in the garage when I noticed the front-left motor twitching and not spinning. I could get it to spool up if i dropped the throttle and brought it back up, i could get that motor to spin but shortly after it would start to twitch.
I removed the heatshrink covering the 3 gold connectors, and seperated the three, then continued to balance the motors and that motor never showed any signs of failure after that.
I can see myself spending a couple hours in the garage removing 3.5mm connectors and soldering everything together. Soldering... my favorite.