I use a silent ringtone as my default ringer to kill the sound of junk calls. I updated to 8.1.2 a week ago or so. All was well -- until this morning when the phone RANG. I looked at my settings, and my 'silent' ringtone was mysteriously gone and been replaced by the tone called 'opening'. I went into itunes and found my silent tone and restored it. I also contacted Apple support -- and they were mystified. They suggested I report the bug but otherwise had no answers. I thought 8.1.2 was supposed to solve this problem Ugh. Anyone else experienced this yet?