Cataclysm unlock bugged

So I logged on for the first time since the release of winds, I refunded the DLC originally but decided to buy it again since it was on sale.
It says I still have to defeat all the lords on legend, and yet I checked my achievements and every lord has been defeated on legend.

Now as far as I’m aware this only includes the 4 bosses from Helmgart, if I’ve somehow missed one please let me know how. If not, then would like a fix ASAP

You have to do it again for all 4 bosses to proof you are legend worthy.
Was one of the Def statements after release…
If you can’t manage to kill this 4 on legend why even bother with cata (was the sub message)

Ah ok, I can do that easy enough just thought it was a bug

Yep, once you’ve upgraded to WoM there is a pre-requisite of killing the lords again on Legend to unlock Cataclysm. A lot had changed (I guess you could argue a lot has since been dialled back as well, so maybe it’s less of a requirement these days) so we wanted players to re-prove themselves on Legend to unlock the next difficulty.

but what if we completed all lord maps on legend post 2.0 patch? why isnt the requirement retroactive like the other challenges?