Transaction not yet indexed

21ULMCncs78CW2jhJFFZAvi7TRb4fKqULY99TmY7DUFaA9NQawUFnsy59vAcdSNYZvBdy58WUDPuaFbHViU9YYn6

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