Transaction not yet indexed

5mbuuJqk1MNPg53uEdFv8T2r8W4aNWwJn3yWnRyFgqrVCpZd5fNi8ygeWVKnUwyCQEGjtEtecTwMFNkwPjLsSeG1

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