This is a known bug and was addressed in the recent beta firmware. On mine, I have to click “OK” on the screen before the light will go out. Check out this thread: H2D Firmware V01.01.03.00 Now in Public Beta! - Bambu Lab H2D / H2D Firmware Public Beta - Bambu Lab Community Forum
Also H2D Chamber light stays on - Bambu Lab H2D / H2D Firmware Public Beta - Bambu Lab Community Forum