Difficult words retain 'Difficult' status - never fall back

Some of my “difficult words” are tested and tested again when I do a ‘Difficult Words’ review. So, this is how it goes:
I do a ‘Difficult Words’ review. Four words are tested. Fine. I give all answers correctly.
Next ‘Difficult Words’ review, I get the same or some of the same words. None of the words of the previous ‘Difficult Words’ review have lost their ‘Difficult’ mark.
Third, fourth and fifth ‘Difficult Words’ review, these ‘stubborn’ words that don’t loose their ‘Difficult’ status are still there.

What information other does Memrise need in order to process and solve this issue? Please, let me know.

Notes:

  • It doesn’t happen with all ‘difficult words’.
  • Most loose automatically their ‘Difficult’ status when I have reviewed them once using the ‘Difficult Words’ review.
  • It seems that it mostly happens to words that I missed several times in a row, perhaps across several (‘Classic’) reviews.
  • A ‘Difficult Words’ review session might contain some of the ‘stubborn’ words mixed with newer difficult words (that usually loose their status quickly) or have only (i.e. 4) stubborn words.
  • I am using Android.
  • There seems to be a similar issue using the web in this thread titeled ‘Difficult words algorithm’.

I have tried to search on this forum, and found only this and this very different issues where the user couldn’t remove the ‘Difficult’ status manually.

Screen shots:

I think you need to get them right at least SIX times in a row for them to lose their difficult status.

They landed there because they were difficult, so you need to prove that they are no longer difficult by getting them right on multiple occasions.

Kinda makes sense to me.

Yonsei Korean 1 Vocabulary 2017 (연세 한국어 1급 단어)

쯤 / about can be seen in your difficult word list, but you’ve never answered it incorrectly.

Judging from the screenshot, you manually placed these words into your difficult words list.

This may have been an accident or maybe deliberate.

Words which have been placed in your difficult word list manually can only be removed manually. Words which were placed in your difficult word list automatically, will eventually be removed automatically.

You can remove the words from your difficult word list by either:

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Thank you for your complete answer Joshua. Matty also said something along the same lines.
BTW: would it be a good idea if manually marked words are removed eventually?

When you manually mark a word as difficult, you’re declaring that you find the word difficult.

We can’t determine if it’s still difficult or not. Only you have the ability to say whether the word / sentence is still difficult or not.

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Sometimes it’s a bug in the app.
I experienced the same few weeks ago with the app constantly keeping the word ноский in my Russian official course, got it right 54 times or so :stuck_out_tongue:
until I started to think “well maybe I should find a way to report or remove this bug”.
Then I went on the website (that I don’t normally use, so I didn’t put that Socks word manually in the difficult words section) and figured out I could remove it myself.
This has not happened again yet but it’s only been two months that I use Memrise so we’ll see, now I know what to do anyway and, for life, how to say that f#*%g Socks word in Russian :stuck_out_tongue:

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Joshua, does this rule (6 correct answers) also apply to normal revising without using the difficult words functionality, ie do I require a correct streak of 6 correct responses before a word is removed from the Difficult Words list?

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The amount of times you need to answer the word correctly to remove it from your difficult word list, can vary between 1 - 6. Depending on how many times you answered the word incorrectly.

Reviewing the word in any session can remove it from your difficult word list. For example, Audio session, Review session, Speed Review session, etc…

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[quote=“julienmarocco, post:6, topic:11798”]
I experienced the same few weeks ago with the app constantly keeping the word ноский in my Russian official course, got it right 54 times or so :stuck_out_tongue:
[/quote]I though i had the same :confused:, but perhaps it was marked accidentally, and (as @Joshua pointed out) manually marked items, never loose their mark automatically. Would it be impossible that is what happened
with that word ноский ?

Most likely, you also accidentally marked the word as difficult.

Yeah I think it must be what happened as it hasn’t happened again.
Didn’t notice I could mark words as difficult within the app, will investigate that :wink: