Transaction not yet indexed

AmAdcZjWNyDTShfuFpfA5oGv338NF4NPYjTocG7HWZnKSe8rGsNuvrPHGaDrqA9PQHRpTpzytg8dcG2ogPNApdH

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