Transaction not yet indexed

AmMcdncYtTZbXJ3m734i2f72J11fFQn1S3gyiKFYYHor7mXgYkHFj2cmdVbZoEXUiLCZHqqnHUmRLWJgt6PUoev

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