Thanks to those who discovered the fix!
I think I read where Doze is more aggressive than previously employed. But turning off power save may be a good idea before updating too. After updating everyone should check Battery Optimization to see which apps are "NOT" optimized, which means they will still operate in the background. Also, you should enable "All Apps" when checking, so as to see which system apps you may want excluded from doze. I'll be sure to pass along the fix mentioned above.