These may have been updated long ago but I didn't see any notices on here from quick search in the change log. Some cardnum differences from Birk Pinker's Challenge Deck pdf:
Indur's deck has the character set from Hoarmurath's deck instead.
The Witch King's challenge deck is missing a starting Orc Captain.
Adunaphel's deck seems to have lost Miniod's name.
Challenge Deck characters mixed up
Moderator: rezwits
One [online community] with hammer and chisel might mar more than they make...
All players are welcome at Meduseld! https://theo-donly.github.io/MECCG/
All players are welcome at Meduseld! https://theo-donly.github.io/MECCG/
I can confirm the same on my old (current) account. Missing characters, copy/paste errors, naming errors (fail to retrieve), etc. This was brought up before and I believe at least some of it was fixed for newly created accounts only.