Does anyone else have problems with the microphone questions quitting after while? It works for a few questions, but then on the "review answer" part, there is no longer any response no matter how long I wait.

I then have to switch off using the microphone to continue the lesson. Sometimes reloading the browser, switching the microphone on in my settings and starting a lesson over (all not very handy) gets the microphone question functionality back working. Sometimes, it never wants to come back.

I mostly use Duolingo with Chrome and the Chrome extension on either Linux or Windows 7.