Transaction not yet indexed

MhdKz6MRVqQ2pcqMZJhUovGpGy2PHqUyhpUUf1Cq5byZ6PyiGPpwPLaw9GvLQQdQpcuhwu1rgim6DQL8EFkXxG7

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