I have 2.000.000 sats lost, due to lack of diligence writing the correct index of a bip85 wallet.

Had to spend an entire day checking my other wallets to verify the correctness of such wallets.

Fortunately, my setup was uncomplicated and simple enough for a 99% recovery success.

The wallet lost belongs to a friend, which leads to another lesson learn. DON'T MANAGE OTHER PEOPLE'S MONEY.