I'm scratching the back of my head here because I don't understand what's happening. I have Haxchi installed WITHOUT CBHC on version 5.5.1E. Games that are installed using the WUP installer on NAND function normally, I boot the Wii U, I start Haxchi, launch Mocha or SimpleSignaturePatcher and I boot the games. Now here is the fun part: When I boot my Wii U and go straight to WUP installer installed games that are on my USB stick, they work anyway (do note that they are all from the same console region). I wanted to intstall CBHC because launching Haxchi every time is annoying, but I'm getting a large drive soon and if CBHC isn't needed then I'd rather avoid the risk.