Transaction not yet indexed

MmhuRUaJaMeKaVvhwUHVRVyQ95HTdeHTyct8kZHVG7S95AWvBzLwPfRYXiZun3mUpQM9beyjR5K2wM666vZa9JE

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