Transaction not yet indexed

5Sm64Pk5SEauQ2vqHSAX1p5f4tLVd5nShQNBE4hcQkDHbcvFrJ6UbKPxv352oKzeCmRSwQnBX3CLYGLcxoHoSuup

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