Transaction not yet indexed

Amm3o5rCnfvGvySBSjgoKFsj5o7ZXmBNoRfprtoLxoiGzE9RJppsTY5zN5T6iJr9LY8utNQtvk9eocoamTkoitP

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