Transaction not yet indexed

am6M1NTP5FLVNMEmWeGTfiXxWmFkPWDz5H6VNfXPqjRrUSdarPy2Qx5wk5mmiy9Digspzk5bBDNgP4nkPs9iLUU

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