Transaction not yet indexed

1Sez4STM8RUPQC2Adh3m78N9MdbGKTCdEYVaniQSLmi2BMuJ5Xym4nPVc7KqbM6mP4AZHbTxtZzNuaZj2WsEJK8

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