No Credit for Quest - Fates of the Shadowlands Raids
Common ProblemsI completed all of the bosses in Castle Nathria, Sanctum of Domination, and Sepulcher of the First Ones but didn't get credit for the achievement (Fates of the Shadowlands Raids)
Fates of the Shadowlands Raids, which required players to kill all of the bosses in each Shadowlands raid tier on the same difficulty during Shadowlands Season 4, originally rewarded Jigglesworth, Sr., affectionately known as the "slime cat mount." This is now a Feat of Strength and can no longer be obtained.
While there was an issue for a few days where the tooltip for this achievement in game said that it could be completed on any difficulty, it was never available in Raid Finder difficulty. The mistaken information was updated with a hotfix and players still had several weeks to complete the achievement on a harder difficulty.
Customer Support cannot verify this achievement and will not assist with granting either the achievement credit or the mount.