Transaction not yet indexed

28SFiv5a7Vn1D71ZV99yHdyxiY8MRkMoc6rAGdJfWnYSShGtqUGT1f3QEUzatDWTBHsU7fmd31gQPUHC87j8RZU1

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