CCS adapter doesn't work on Chargepoint, but works fine on EA.

I've got a 2018 Model 3 that I've upgraded with the new charge port ECU to support CCS. The adapter works fine in EA, but I recently tried it on a Chargepoint station and while the station recognized the car, it wouldn't start charging. Said there was some kind of problem.

Station worked fine with the CHAdeMO cable and adapter though.

Is there a thing with Chargepoint and the CCS adapter? Or could there be something with my ECU upgrade?