Camera Lock With Galio's Ult.

Unsure if this is specifically for Galio or not but whenever I unlock the camera after using Galio's Ult the Key for Camera Lock doesn't seem to register and doesn't do camera lock. It doesn't respond no matter how many times I click and the symbol on the bottom right isn't change either. I click it and it works but the image is broken not letting me know if it camera locked or not.