I'm thought I had this one behind me, but now there is my ringtone or silence, both text and calls. Now I'll try to purge few and restore few apps, so get to the exacly point that I was before ringtone bug. Because like I said, I rolled back to 7.2 where it was all sound with the ringtones, but the bug was still present. If anything will change here I'll post the result.