Correct word strength not shown in vocabulary list, or the right words not tested?

Currently, when I check my weakest word in the vocabulary list, there’s about fifty words with only one bar strenght. These, however, have remained the same for about a week and they don’t seem to appear when I practice weakest words (and I they do appear they don’t seem to be strengthened). Is there a problem with the test algoritm, or only a problem with displaying the correct strenght in the vocabulary list?

December 2, 2013


We'll take a look at this...

December 2, 2013

I think I have noticed the same thing:

December 3, 2013

I have a similar thing going on. The french word "chose" doesn't show up in practice when I do "lesson practice" even though it seems to be the word with the lowest score for several days now.

December 6, 2013

Oh, I believe my problem is the same:

December 10, 2013
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