iPhone 6 Plus LED alert not working.

I have always used the iPhone's LED flashing alert to notify me when I get a call or text message. While I was on iOS 8 Beta 2-4 it was working fine. I did a clean install of the complete iOS 8 release and ever since then, the flash alert doesn't work.

Sometimes it will work on incoming calls, but will not work on text messages. I've tried soft/hard rebooting, clean wipe and fresh installs, and pretty much anything in between. Now, today I got my 128GB Gold ATT iPhone 6 Plus, and it's the same thing. Updated to iOS 8.1, reset everything/deleted all contents and settings. Both fresh install, and iCloud backups and still no alerts on text messages, but now I get them on calls. I tried my girls ATT 128GB iPhone 6 and she has the same problem too. My old phone was a 64GB iPhone 5S and hers was a 32GB iPhone 5. Everything was good until the official release of iOS 8.

I've tried searching for related issues, and haven't found anything since 2011 with a quick Google search. Most links just tell you how to turn the flash alert on but no new issues. All of my devices are on iOS 8.1. I gave my father my 64GB 5S with a clean install and he still has the issue as well. So, that makes my iPhone 6 Plus, my girls iPhone 6 and my fathers iPhone 5S not flashing LED on messages and sometimes calls. There aren't any custom vibrations enabled on any if the devices. Has anyone else experienced this problem? Is it a known bug or am I just not doing something right here? i never had an issue before the iOS 8 release. Any help would be appreciated.