Transaction not yet indexed

AmXCtbKDSYzMCAScurbGKpru3DHCicDfc8Ljm1PJpAMyAFtZcDSGMYQn9UXjq6JWVZQq9ESTMGS8aeTwH6h1SqB

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