Transaction not yet indexed

21U6wWdrag5Xe8TEqSDCYy1BqwSL3z9TsAddQg9Umbddrk8dGdvW89wLy5SSJtP8XiXPLjVmPbGayq7uhEkJ4dUm

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