Transaction not yet indexed

ymffL3uVm94PJrcv8eTExCnzK4sEdDUA1qqeTmqzmEAMhXcBmam6J9zC4G6roRyitFn2PkzfLugv4dva7zyTmMZ

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