Daydream shutting off after about 5 seconds

I have a zmax pro and am having trouble with daydream. I selected the button that says "while charging." The "always on" button is not checked. I am not pressing the power button to turn it off. The phone goes out after 2 minutes and the daydream starts and works for about 5 seconds then the screen turns black. I know it's not a big deal but I really like the feature. I've searched every blog and forum out there and have not seen this problem addressed anywhere. Please help if you can! Thanks