X40 ultra water leaks from the docking station

Hi everyone,
I have a Dreame X40 Ultra with an automatic water supply and drainage kit.

Clean water is leaking from the connection between the detergent container and the base station, then dripping onto the robot below.

The leak only happens when the detergent container is installed and presses open the spring-loaded valve. Removing the container stops the leak. Disabling automatic detergent dispensing in the app does not help.

The liquid is clear water, not detergent. I’ve attached a photo of the container and its connection.

Has anyone experienced this and found a fix? Could it be a seal issue, or something else inside the station?

Thanks!