Transaction not yet indexed

21AUL5nGnG4YPKicjSX3i768peXXEFL5hb8DcGVL8VhRSZUg9yg5VwSDEhK5SfkK4Q3Z2R6pTpLwHgkNLuM3Z1z2

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