Transaction not yet indexed

5c91tPk495dGEEsqUp1dbZpCupCq3qjEWVE6VcDvawWb1oKvdMGT8oCsE64qXZfa6j62AHftrF42ftXp7Vgzkra4

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