How to fix Mario Kart 8 Deluxe DLC not working

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

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 shares a release date for the Booster Course Pass Wave 5 DLC - Meristation

Booster Course Pass Reverse Fix Reverse Fix! [Mario Kart 8 Deluxe] [Mods]

Mario Kart 8 Deluxe Booster Course Pass:' DLC, Pricing, Availability

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

Mario Kart 8's Final DLC Launches Next Week

Mario Kart 8 DLC: Wave 4 Release Date and Track Listing

New Mario Kart 8 DLC Packs Add Courses, Drivers, Karts

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

Mario Kart 8 Deluxe is adding 48 newly remastered classic courses as paid DLC

Mario Kart 8 Deluxe's new expansion is good so far—but is it worth $25?

Mario Kart 8 Deluxe is getting 48 remastered courses over the next two years as paid DLC - The Verge

Free 'Mario Kart 8 Deluxe' update lets you choose what power-ups appear during races