When a defendant raises a derivative theory on appeal that was not raised in a timely suppression motion in district court

Question Presented Federal Rule of Criminal Procedure 12(c)(3) provides that certain pretrial motions are “untimely” if not raised by the deadline set by the district court, but a “court may consider the defense, objection, or request if the party shows good cause.” When, on appeal, a defendant emphasizes certain undisputed facts to support a derivative theory of one raised in a suppression motion filed in district court, is plain error review available as the Fourth, Fifth, Sixth, and Eleventh Circuits have held, or does ‘good cause’ replace plain error in Federal Rule of Criminal Procedure 52(b) as in the First, Second, Seventh, Eighth, Ninth and Tenth Circuits? i