I installed Haxchi and then CBHC a few days ago and everything worked well. I could see the HAXCHI channel on the WiiU system menu and was able to launch it to get into homebrew. Then, today the HAXCHI channel has disappeared. CBHC is still working when I switch on the WiiU and I can select booting into the app store or boot sysNAND as normal. The DS game I originally downloaded was Kirby Smash Attack and I've looked in the sysNAND via the WiiU data management and the game isn't there any more. I checked the USB just in case (although I knew I didn't move it) and it's not there either. I do see an icon on the WiiU system menu. It is a red warning triangle with a black exclamation mark. When you select it, it says DONT TOUCH ME. Not sure what's gone on, but I can't see how the original eShop game that I purchased from the eStore just disappeared. I'm assuming because that doesn't exist, that's why the Haxchi channel isn't there any more?