Missing duplicate cards since KOTFT rotated into standard

[Cece-2552]

from hearthstone year changes , so from core rotation changes or introduction, cards can show at 4x instead of 2x , duplicating the dust wrongly.
This was never visually fixed becouse even if client dont know what to do , server knows what to do … so the fix was serverside.

@Kerfluffle-11372

Duplicate cards from the Core Set and Wild can show 4 times in the Collection Manager. This is something we’re looking to change in the future.

@Kerfluffle-11372

A bug where the mass disenchant preview is counting some cards twice but giving the correct amount of dust when used.

When the bug first appeared it was confirmed by players that mass-disenchant was showing a value but manually searching for this cards to try to manual disenchant was impossible , so the dust was from nowhere becouse there was no extra cards avaiable to disenchant in collection.

edit: example
https://www.reddit.com/r/hearthstone/comments/mefra0/my_mass_disenchant_section_shows_i_have_2_extra/

mass disenchant say 2 legendary , he can found only 1 … screenshoots still work.

edit: i found another
https://www.reddit.com/r/hearthstone/comments/mr2r2h/bug_cant_manually_disenchant_golden_core/

edit3: another one
https://www.reddit.com/r/hearthstone/comments/me48yt/62526852200_is_there_a_mass_disenchant_bug/
one of the replies

Yeah, I had a similar bug. It showed that I had 800 dust worth of extra dust, which was 400 dust more than I actually had (for some reason it thought I had 2 extra legendaries when I only had one).

edit4: another from this forum , is so hard to search old topics here.

Mass Disenchant overestimating?

I have a spreadsheet to keep track of how much cards I miss and how much dust I have. Today, after the update to patch 20.0, I noticed a huge and unexpected change. The amount of dust that I am promised if I were to click “Disenchant Extra Cards” suddenly jumped up, from 52135 to 68295. That’s a gain of 16,160 dust. I prefer not to dust my extra cards, so I have not verified whether or not I would actually receive that amount of dust if I click the button. I first thought this might be relate…

Mass Disenchant Showing Two Duplicate Normal Legendaries When No Duplicates Can Be Found Manually

After performing the update to 20.0.0.77662 and receiving the new Golden Packs and Golden Cards (for original classic cards), I discovered that I had 2 duplicate legendary cards. I set my filter to legendary and went through every set, including the Wild Set, but could find no duplicates. That leaves very worried that the game has flagged two legendary cards that are not actually duplicates. It also makes me wary of using the duplicate finder in the immediate future.