Google Home Bug Stops Color Controls for Smart Lights

Color selection is blocked across multiple brands, forcing users to set colors in each bulb maker's app.

Overview

Users first described the problem on the Google Home subreddit when tapping colors in the Home app produced no change for most hues.
Reports and testing show lights still turn on and off and respond to brightness commands while color selection fails except for some white or yellow tones.
The fault affects devices from multiple manufacturers and breaks routines and voice color commands on Nest displays.
The only practical workaround is changing colors in individual manufacturers' apps because the bulbs themselves still accept color changes there.
Google has not publicly acknowledged the issue or given a timeline for a fix, and the outage highlights how a single platform regression can remove voice and automation conveniences for smart-home users.