The current High latency (https://status.duolingo.com/)
is causing a bug that keeps returning me to the home screen midway though a lesson. I just wanted to notify you all.
Yes, VERY laggy around 00:00am GMT+1 (CET).
I even had to kill the browser (multiple times) to get it back as it was consuming 100% CPU time.
I guess I just had luck that ~10-15 minutes before that I was able to sucessfully get 19XP and save my streak ;)