Transaction not yet indexed

64C521tx3PFkcrQU8sSU4Ebfr58HzWvtKNuhM3yLoBG3Kx2h1ucoyenXGDTzFS3jLq1bQrqtnom2JrHHVJyKeCBQ

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