Custom Fen Direct Challenge Issues

Struggling with setting up and sending sirect challenges with custom fens with non traditional Chess positions. Can't get this one and a couple others to send when i used to be able to. Is pawns on row 1 but they can move 1 usually still and then 2 from the 2nd rank pNpNpNpN/Np1p1p1p/p1pKp1pN/Np1p1p1p/nP1P1P1P/P1PkP1Pn/nP1P1P1P/PnPnPnPn w - - 0 1

You can't set up this match... because its an illegal position apparently. But if you want to edit a position and send challenge you do it in the normal 'Play' https://www.chess.com/play/online -> 'New Game' page and select 'Custom Position/Odds' in 'Game Type' box. Here's a link i created of 'custom' position to a normal FEN match https://link.chess.com/play/Vv5br2

If you get rid of back row of pawns it becomes legal apparently

FEN: 1N1N1N1N/Np1p1p1p/p1pKp1pN/Np1p1p1p/nP1P1P1P/P1PkP1Pn/nP1P1P1P/1n1n1n1n w - - 0 1

https://link.chess.com/play/G9oBHQ