What We Wear In The Shadowflame

If you are missing one or more pieces for this here in patch 10.2, you have to go get it in the appropriate raid - the Revival Catalyst (near [npc=198695]) does not work on gear from previous raids :(

Did someone complete it as druid? Cloak seems to doesn't drop anywhere atm.

UPDATE: FOUND A SOLUTION: This achievement is -at least by now (17th February 2024) unobtainable due to the fact that the cloak does not drop from any Raid-difficulty and the catalysator (which was the only source to get the Transmog of the cloak) does not work in season 3 for season 2 Items. I submitted a ticket, filed a suggestion and a bug report, to be sure.

You can finish the achievement by going Aberrus LFR AND using the Catalyst in Thaldrazus with gear that you can buy from [npc=208649] once per week per character. If you have more characters on the same class for example, you can do it on them aswell to obtain more gear per week as following due to the fact that the transmog gear is accountwide: Accept the weekly quest Shaping the Dreamsurge whereever it is acticv in the week (it switches the location every week) and finish it by collecting 100 of [item=207026]. After handing in, you receive 1x [item=210254] allowing you to buy any item from the questgiver NPC [npc=208649] that you can then throw chargefree into the catalyst. It will convert the item into a blue one but still counting towards the achievement. You can finish 88 % of the achievement by going LFR every week, but the cloak does not drop in LFR so Catalyst is the only way to finish the achievement. If you do the quest on several weeks or more characters, you dont even have to go LFR. For the cloak, i bought [item=209412] (the vendor offers 3 cloaks) and received after transforming [item=202438]
UPDATE 1:

Answer from GM: AI generated answer that i may check forum/fanpages, delete Chace/Reset Interface or check/delete addons. Obviously none of the suggestions may help, so i reopened the ticket, asking for "a real GM" and will update as soon as I receive a response.

UPDATE 2:

The GM gave me the Wow-Head-Link of this page with the comment "here you can find the solution and if not, please use the Bug-Report-Function". Insane.. Attached is a picture of the response - the format looks weird due to the fact that i have the german client and therefore had to put the ticket into image-translator so you understand what he said. https://imgur.com/a/Lm3j3t0