Transaction not yet indexed

MNKNWdte2JzwofbQfo75mFhiyRhLsi1vZQ3BPYZpF9n9D8z5oZF2ZXxgCAsoqnrZwXkAvf2CfQBrEjQZTqH1dRE

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