Patched versions usually break the casting functionality because the authentication handshake fails the official server checks.
In the Nintendo Switch modding community: Patched Youtube Nsp
Before we discuss the "patched" aspect, we must understand the container. NSP stands for Nintendo Submission Package. It is the official digital distribution format for Nintendo Switch games, updates, and DLC downloaded directly from the eShop. In the Nintendo Switch modding community: Before we
When you buy Hades or Zelda: Tears of the Kingdom digitally, the file that installs to your SD card is an NSP, encrypted with Nintendo’s proprietary keys. In the modding scene, users dump these files from their own consoles or, less legitimately, download them from piracy sites. Patched Youtube Nsp
A standard, unmodified YouTube NSP is simply the official YouTube application downloaded from the eShop. It allows users to watch videos on their Switch—nothing more, nothing less.