Strengthen PresTens1 not working?

I keep strengthening my Present Tense 1 from 4 bars to 5, again and again on the same day, in the same session and Duolingo never seems to update and leaves PresTens1 at 4 bars - why is it doing this?

January 20, 2017


Do you peek very often when you do this skill? This lessens the amount of time before the skill will ungold itself. =)

January 20, 2017

Thanks Cam_and_Alex No, not that I remember - I found it one of the easier ones with vocabulary that was more obvious, so even in my early days on the course, I hardly peeked at all. Over the last 2 days I must have gone from four to five bars around 10 times and it just never updates to five - very strange. Any ideas gratefully received.

January 20, 2017

There was a problem with strengthening this lesson some time ago. The workaround was to redo the lesson rather than to strengthen. I don't know if the problem was fixed and has come back, or if it never went away.

Duo has been having quite a lot of problems over the past few days, apparently - leading to 'sentence' discussion having vanished, for example - so it may be connected with that.

January 20, 2017

Thanks Ibisc - I'll try 'redoing' tomorrow. Perhaps that will solve the glitch.

January 20, 2017

I hope it has ironed itself out now. =)

January 21, 2017

Yes - thanks. Ibisc's advice to just to do the actual 'lesson' over again did the trick. Thanks.

January 22, 2017
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