Transaction not yet indexed

sepM2fjSspeKExnwBHyDqLWr2aki7e6rB8raWuDoJ8NswPfcDaeV7tk6d4ZqUjaZZJSzaX5PQPKftPeBhuPBPj3

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