device status not updating
When light color or brightness is changed in Tuya app or by Alexa, homekit seems to always show the previous data. There is also no way to see the actual color of light as it is always display as white in the home app. 
When some device settings are changed in Home app Tuya app  right away ( Alexa within 5 s) provides with updated data. When color is changed in Tuya app or by Alexa those datas are not updated in homekit.