Transaction not yet indexed

ddEm31UnjgHWqBBEVEncFnWvGEksMoJRDueHSdhSBZDuq1qvFdEuh39dZRh6UJxWphdPhDLf2rKCxn9Z8CPMr5S

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