Transaction not yet indexed

5S99vZwXmhkVtE4vrwD3Zh7zkwPg6AARgEDsiFbGDEMFrCTD4Bb6T4gDWa6EGakpKMksk4NhqER1L6JbZfWDCWkT

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