Transaction not yet indexed

21Mkc9NthrSYU4wZbxUaj5SsSney1pW7xjSmqr6nd1b19s1n2xDYbv6VQhTCrZG6U9wGrmEubESQJsRx9KpfCSCL

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