I’ve had a Blizzard employee confirm that my hunter (Artemistia) did indeed receive the ‘Malfunctioning Mechsuit’ from Mythic SV, but the employee says the item was “deleted” on 2024-12-29, but I remember turning in the item to Speaker Jurlax, but there is nothing in my quest log to indicate this. I remember when I received the item originally, I had no idea there was a mount quest item even in the dungeon & I went to look up the item on Wowhead.
I definitely think there should be something in our quest journal so we know the quest is actually still there. This seems at best an oversight, & at worst a bug that is causing the questline to no longer be tracked.