How to fix Mario Kart 8 Deluxe DLC not working

This is how to access the Mario Kart 8 Deluxe Booster Course Pass

Mario Kart 8 Deluxe shares a release date for the Booster Course Pass Wave 5 DLC - Meristation

HOW TO UNLOCK NEW DLC TRACKS IN MARIO KART 8 DELUXE!

Mario Kart 8 DLC Has Created A Huge Problem For The Switch 2

Is it worth buying the Mario kart deluxe 8 booster course pass DLC? : r/Switch

Mario Kart 8 Deluxe Wave 5: Release date, tracks, characters, patch notes & more

New Mario Kart 8 Deluxe DLC is a golden opportunity for Nintendo – so where is it?

Nintendo revs up excitement with Mario Kart 8 Deluxe Booster Course Pass physical release - My Nintendo News

The complete edition with all 96 courses available. Mario Kart™ 8 Deluxe + Booster Course Pass, launching on December 1, 2023., News & Updates

Mario Kart 8 Deluxe [Booster Course Pass Set] : Video Games