Transaction not yet indexed

MPfmdcMxKpVxpxT8UAm8DLDCfPGbE9B3DkubfpAVf8vv4qFq3N2QLvZTRZnWLt5fS8W7iNN8tG74DvnBU9X4Lw4

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