Default [Q] Samsung keyboard, voice recognition button stuck

In my Sgs3 I used to have a coma selected as a default function for a button on the left side of a spacebar. Generally if you hold that button and select a function you want from a popup menu, it used to be that button selected function until you changed it. Now, for some reason, few days ago my samsung decided it will be a microphone button regardless of what I use in a popup menu. It drives me crazy, because I dont use voice recognition. I use comas quite often on the other hand. I would love to know what caused this sudden change of hearts. Ideas anzone_