Transaction not yet indexed

56S2dpNAYtkM2WDnKsFgMQvNBnwh6C2c2bVXiC4nYQtKAm8PjkQRx3ZXHPQD7cSQj1tw2FHumE5LsZXnaWoCDnS2

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