Transaction not yet indexed

5c21vCJJZHvtU1i3fKS1BZ8kv4o7LjZkztq8DuwPYXFiXgQP9vyDkuQv5u7qFn3XDHW5ruDtagP4w32PuKa59ppb

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