SONOFF Matter Smart Roller Shutter Switch, MINI-RBS always shows 50%

Hi
I have a SONOFF Matter Smart Roller Shutter Switch, MINI-RBS, used as a garage door switch. Its used in pulse mode and has two states only. Its eWeLink app and consequently HA always shows 50% as the state. It is either up or down, but the reported state is always 50%.Does anyone know how to remove the state altogether as its irrelevent to the doors position Regards Pete