I have Alexa Echo show, Echo dot, and SONO with Alexa capability. When I first set up HUE lights with Alexa I could turn them all on or off with all Alexa devices. Now all of sudden, I can't turn HUE lights ON with Alexa, but I can turn HUE lights OFF with Alexa. Doesn't make any sense. This was the main reason I wanted to invest with Alexa. To be able to turn light ON and OFF.