For some reason my WeChat is unable to send audio messages. My mic on my phone works for calls and notes to myself, but in WeChat, when I hold down the talk button, it doesn't pick up any sound and doesn't transmit anything. The icon comes up like it normally would for the volume indicator, but it indicates nothing no matter how loud I speak. I've deleted and reinstalled the app, but same thing. It's pretty inconvenient since this is a great feature for WeChat. Anyone else have this issue?