Transaction not yet indexed

21UfpcSXckd2ivUdyUqEe2u1WNxTbJjG4qFwEnxAdCGq1LTvLfNfb8jYYJa1GeQBXPLZAvjFLZAevfWEt5XgLtvs

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