I've made YouTube video that show the problem: https://www.youtube.com/watch?v=8Wt6jisn96M&feature=youtu.be
If you use the "activate" command to turn on a Yeelight actions scene in Google Home, it will work just fine. However, if you call the exact same scene using the scene function in a Google Home routine, the scene will activate but it gives the error message "could not reach scene, try again later." Very annoying. This is something in the way that Yeelight is programmed, because I can call Philips Hue scenes in Google Home routines and they work fine with no "can't reach" error.