This evening I have had problems trying to open my Chinese lesson on the iOS app. I don’t know how to link to the lesson from the app, but I can edit it in once I’m at my desktop again. Edit: here it is: Login - LingQ
I got a few sentences into the lesson (maybe 15 or 20 seconds of audio time), when the app crashed and force-closed. The same has happened every time I tried opening the lesson again, even after rebooting my phone. I haven’t seen the same issue affecting other lessons/languages - yet, perhaps?