Transaction not yet indexed

521ujsdLJxufepKJgSDZ6zpTXKREncNtdDz1Bs14nN6uJTE6te8xViBFAepX21QbgUfz8jA5n6wQD8wfW99QX1nz

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