Automation with color useing Sylvania smart buld

I live in the USA. I am trying to set up an Automation that when the garage lights are on a Sylvania smart bulb in another room turns green. Every time I try to save it I get and network error message. I have been able to get the automation to work by turning on the light, it seems to only be an issue when telling it to change color. Any one have any suggestions

I have a Sylvania BR30. I have an automation that turns the light on and red if the garage door is open after 9:00pm. I’ve not had any issues with it. Not much help but it should work