Transaction not yet indexed

Am8uQUS9pDimYC3Bea9QpLuKQRzaLL9KZ1k5TMgn1qAipDfQagcf8PtULdPyWZgBb7MedMmPaBvZnb8a22XKCsH

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