Because the NSP version removes the handshake with Nintendo’s servers, the console’s sleep function often corrupts the audio stream. You would resume your game three hours later to find that characters' lips are moving silently.
Some newer game updates require a minimum system firmware version to run. If your console is on an older firmware, the game will refuse to boot and may ask to connect to the eShop. How to Fix Redirects and Get the Best Performance Update Your Sigpatches: red dead redemption switch nsp update eshop better
Sigpatches (signature patches) tell your console's custom firmware (like Atmosphere) that it is allowed to run modified or unsigned packages. If these are missing or outdated, the console cannot verify the license of the NSP and redirects you to the official eShop to purchase it. Incomplete or Corrupted Dumps: Because the NSP version removes the handshake with
Red Dead Redemption on Switch: Should You Stick to the eShop or Go Manual? If your console is on an older firmware,
Red Dead Redemption Switch NSP Update — Improved eShop Performance & Stability