Transaction not yet indexed

ymmX6wgDmJBXkPsuiLmYxGhhVmYfUupthRszZ6LwkFLLp9GLdPME2pqZbKPTr95CfcgB2gu5WQd8ebMzrSh3ep5

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