Transaction not yet indexed

AMMjkp9dnRHhEdv5haUnoiLgVUt2NBwyH3rjp7tuWF5EfcGMENAv5MYLE3M7ki1fNG1qG2aRw8xeEQk4N4A6vWE

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