I'm running version 4.4.2 on my Verizon MotoX. I have been able to listen to my texts and reply to texts using my voice while driving using Assist until yesterday. Suddenly, the Voice Reply option has disappeared in my Assist app! I've uninstalled Assist and reinstalled it but that did not help. I called Moto customer service yesterday and the language barrier was such that I finally had to give up. Any help will be greatly appreciated.