achievement wouldn't unlock for me
I did a lesson at 10 past 10 last night but the achievement didn't register! I know I shouldn't care about it but I was pretty disappointed... :(
I seem to have the same problem with the first level of the same achievement. I have finished a few lessons several days ago at around 2 AM from the Android app, tried doing one on the web to rule out app error, and today managed to find time for a lesson at around quarter to eight - still nothing. Any ideas, anyone?