Alright guys, and it’s got me stumped. Hoping someone has seen this before

I have water on the driver’s side floor of my E53 X5 4.8is. Before people say it’s the vapor barrier I want to say that I have replaced it, and after just inspecting it it looks flawlessly sealed. When I install them I make sure that the surfaces are fully decreased and the butyl seals strongly before I button things up. The door drains on this car are huge, about a half inch long so they shouldn’t be clogged. A year ago I tore out the entire interior and pulled the sunroof in order to 100% make sure that wasn’t the cause of leaks. It received new seals, and all the drains were cleaned out with compressed air. Afterwards I even lightly epoxied all four drain tubes to the barb and heavily clamped them to make sure that they never pop off in the future. so I doubt anything there is the culprit. The drivers side rear floor is dry, so it is definitely coming from the driver’s door area.

Wtf else could it be? The white plastic barb clips that hold the door panel on have foam washers, at the risk of sounding stupid I assume those are just for noise and not really for sealing but maybe I should change those too? I have a hard time believing that the shadow line window trim rubber is allowing so much water in that it backs up the two massive drains in these doors. Any other ideas?

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Current stable: 2005 LMB X5 4.8is, 2000 LMB M5, 2004 JB M3 6spd coupe