Transaction not yet indexed

21U4mpAJZ2WjwacMD3fLp8XQAQA9Hor5ePiMiMvnVR29ZPbJ2ACoJJEfbvGGEehzJZBEaTxaDLRZeKHrZezFuvfK

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