Transaction not yet indexed

mam2KdN5on72AADfV7VMvcMsufU4eSAbqsnR7L8zCGFHQ2HLuqnHABR9aG8WiNPRt7YUYDGvQT2UrWeKZttoBZc

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