Starting a couple of weeks ago, first Alexa didn't know blue or any variation of blue. Now, she doesn't know white or any variation of white. I'm using the 'official' list of 133 colors that was posted someplace - about half of them she still knows, half she does not - but she has known them all for months previously. She still knows yellow and green and their variations, but I really can't use her now to change all of my colored bulbs, which is the main reason I got it. Anybody know what is going on?