Malediktus.9250:

There is some stuff that needs manual whitelisting again:

all Items from Cultural Attaché collection
1 item from Gift of Aurene collection (Aurenic Essence)
Koda’s Blessing collection achievement and its items
Mini Mushroom Stomper (automatic unlock from Guaranteed Wardrobe Unlocker)

also some ids mentioned by Elfo Bianco.3786 in https://forum-en.guildwars2.com/forum/community/api/Achievements-don-t-match-the-in-game-value is still missing

Nightgunner.2896:

Also missing: https://api.guildwars2.com/v2/items/79830 (icebrood horn backpack)
Corresponding skin should be here: https://api.guildwars2.com/v2/skins/7017

Malediktus.9250:

the following stuff seems to be whitelisted now:
all Items from Cultural Attaché collection
1 item from Gift of Aurene collection (Aurenic Essence)
Koda’s Blessing collection achievement and its items

the rest appears to be still missing

Lawton Campbell.8517:

I think I whitelisted all of those yesterday; my script says all achievement items are currently whitelisted.

Malediktus.9250:

The achievement and collection items seem to be whitelisted now.

But “Mini Mushroom Stomper” is still missing, it is an unlock from Guaranteed Wardrobe Unlocker, so it probably skips the whitelisting queue.

Also taken from the topic https://forum-en.guildwars2.com/forum/community/api/Achievements-don-t-match-the-in-game-value

https://api.guildwars2.com/v2/achievements/1257 needs whitelisting
and https://api.guildwars2.com/v2/achievements/561 probably should be blacklisted because it gets converted to https://api.guildwars2.com/v2/achievements/863 upon logging in. It seems only people who did not log in between the first release of the super adventure box in April 2013 can have this achievement. (this is most likely because the achievement got an additional reward at the 2nd SAB release in 2013.

Lawton Campbell.8517:

But “Mini Mushroom Stomper” is still missing, it is an unlock from Guaranteed Wardrobe Unlocker, so it probably skips the whitelisting queue.

Whitelisted. The mini whitelist is tied to their item unlocks, IIRC, so that should appear eventually as well.

I’m going to go ahead and whitelist 1257, but it’s a broken achievement (it doesn’t have a name — so the client won’t render it, IIRC). It’s … kind of strange that there are accounts with it? But it’s worth 5 AP, so there’s that.

https://api.guildwars2.com/v2/achievements/561 probably should be blacklisted because it gets converted to https://api.guildwars2.com/v2/achievements/863 upon logging in. It seems only people who did not log in between the first release of the super adventure box in April 2013 can have this achievement. (this is most likely because the achievement got an additional reward at the 2nd SAB release in 2013.

Makes sense; I’ll go ahead and blacklist it.

Malediktus.9250:

Thank you for your efforts.

I’m going to go ahead and whitelist 1257, but it’s a broken achievement (it doesn’t have a name — so the client won’t render it, IIRC). It’s … kind of strange that there are accounts with it? But it’s worth 5 AP, so there’s that.

Not sure if it is whitelisted yet, it still returns "{"text":“no such id”}". But on the other side it is probably a broken achievement.
My achievement point values would not match if it gives 5 AP. Currently I have 1 AP more ingame than I can find in the API, if this gets added the API would show 4 AP more than I have ingame, so these 5 AP probably do not count towards the total AP of players.
So maybe it would be best to keep it blacklisted?