Quiz screwed up and other strangeness.
I tried to take a German test just now, but things appeared to hang. I hit refresh, and the test disappeared into the ether. It's not in the Lingot shop any more; I have to buy another one, which I'm wary of doing, given what just happened.
This isn't the only weird thing lately. For the past few days, at least, when I start a new lesson, it shows the question for only a moment, then proceeds to the screen showing the lessons. If I back up the browser back into the lesson itself, it does the same thing. I have to select or type something really fast and hit return (usually resulting in a missed answer) to get it to stay.