Transaction not yet indexed

ex3WEvMm7CCU8n4G8Zd7QnB3XN4Zj7aob4scvHg5N56eAbCeCE6jgS2pqKGbQKKvD3zFyMTmvNEqJCLKrEU2mjU

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