Can you explain how a bug that has been introduced last patch could have been raised 4 years ago ?
In 30.2.1 all puzzles were possible to complete so I don’t see where that bug could have been hidden before 30.2.2
Also
This one is actually bugged, but online solutions that are 6 years old tend to get outdated since a lot of puzzles have changed with buffs and nerfs but are still possible in other or even new ways
I only started 4 years ago as thats the last time i tried to do this puzzle (not played for a few years) and it was broken then with the same 1 mana issue.