If you installed the Sunbreak DLC but the game behaves like the base version, your game version and DLC version are mismatched.

: These allow your Switch to recognize and run modified or backup NSP files. Installation Tool : Use a homebrew app such as Awoo Installer Installation Guide Prepare Files

Launch the game only after all parts are fully installed. How to Fix Common "Monster Hunter Rise" NSP Errors

Unlike some games where DLC appears instantly, you must actively claim it.

Always use homebrew apps like JKSV or Checkpoint to export your Monster Hunter Rise save file before deleting or modifying game data. Your 200+ hour hunter progress is stored separately from the NSP files, but a backup guarantees peace of mind.

I can provide more detailed, tailored instructions based on your situation.

This crash typically happens right after the Nintendo Switch logo disappears.

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Here’s the "fixed" approach to resolve this: