Transaction not yet indexed

5b1MTDfFtdT36G8JeSPCeFNz2YVD51pUXbpFXs7mW9TYwrBS9dJe7HbACtvNBq6ad5hJMDK7RGbbxj1Qb3Sgn9Kx

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