Transaction not yet indexed

28ECKDmYAFB4aTgGyyTrvoKaQgtvkmDEBWndZBMxtEhMt4u6FQBKRPYq795VQUDa4wgKDf2GBMBkx5q2HKbPwom1

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