Set Completionist II achievement not triggering after May 10th update (Reprint Collection Improvements)
I'm trying to complete Outlaws of Thunder Junction (the standard version; not alchemy), but the achievement won't trigger.
- In the set collection overview, it shows the set as fully collected (see image)
- When browsing collection and setting a filter to Collected 1x, 2x, 3x it shows Terror of the Peaks (see image)
- Typing set:OTJ q<4 yields the same result
- Opening a Mythic Booster gives me 40 gems (shame about the 1,300 gold, but wanted to be thorough)
I own 1 copy of TotP from M21 and 3 from OTJ. With the recent update, that now counts as 4 of either set. I can't craft the "missing" card, and I can't open it from a booster. Seems like a real shame of all those Mythic Boosters I bought, if I now can't actually complete the achievement.

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Alec#82143 commented
Same thing is happening to me
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Jellyfisharecool#83529 commented
similar thing with me but with Tarkir Dragonstorm gainlands and snakeskin veil
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Does#07038 commented
same situation with the fetch lands from MH3 missing an unknown # from them and i have more than enough rares to craft the cards but theres no way to do that because i own from another set, need this fixed OR the achievement to work anyway either works i want "the collector"