Refreshed Skill Didn't Refresh?
I've just refreshed the "Business" skill on the Dutch course - it was only one bar down - but it hasn't returned it to gold. I didn't make a lot of mistakes, either, and when I finished, it confirmed I'd refreshed "Business". So why no improvement in the strength?
Is this a bug, or am I just really lucky it usually only takes one refresh to restore full strength? Does it mean I was really bad at "Business", that it needs more than one go to fully restore it?
Learn how strengthening works in the discussions started by Greg Hullender : Best Way to Make Your Tree Turn Gold and Stay Gold and Does Duolingo Keep Two Sets of Books?.
Its not a bug, just that the strength of a skill is the average skill of all the words introduced in that skill and there could be sixty or seventy words. Refreshing the skill may only refresh a few of those words so you sometimes have to repeat the process several times, although once is often sufficient.