Transaction not yet indexed

MTKZF746on3aKjD5j1Wp3L56Mu5oWpsrcWzVUSdeouknGLvHc9cDphrqdXzqWAxGQRxVFfmeMNBcxTXLR2XHS15

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.