The most frequent issues with are subtle:
Switch-ptchtxt-mods work by modifying the patch files used by games on the Switch. These patch files contain data that is used to update or modify game behavior, and by editing them, modders can change the way a game functions. switch-ptchtxt-mods
For ptchtxt or IPS patches to function, the console must have "Signature Patches" enabled. These patches bypass the HMAC signature checks that the Switch performs to ensure the integrity of the executable code. and by editing them