Garrys mod captioning no longer works

For some reason, the captions under the audio section of the options menu no longer work. They worked fine several weeks ago. I cleaned up my main gmod folder and the problem still persists.

And alyx no longer says anything in ep1 (in Gmod). I remember she used to say things and behave normally.

Could this be an update with garrys mod that screwed it up?