Throttle pedal does not register *only* on the W13

When I calibrate the pedals iracing detects the throttle pedal. As soon as I enter the car, it stops registering.

All my drivers are updated. Connections are fine. I don’t have this issue with any other cars or any other game. It’s only on the Mercedes W13. Any ideas?

ETA: my pedals are the CSL Elite v2