OK, so here's my experience with this new crappy update:
-WiiKey 2 Modded Wii
-Never had HBC or cIOS installed
-Successfully installed HBCbeta9 via newest version of the Twilight hack
-Many aps in HBC do not load including Gecko Region Free
-cIOS installer will load from HBC but it gets error 2011 when it tries to load the wad file
-Scrubbed/fake signed disks will not load (Tested SSBB DVD5 and WiiKey Config Disk)
-Regular backup disks load no problem (Tested Wario ShakeIt)
Thats it hope this helps. I can't wait till someone comes out with a fix for this cuz untill then no homebrew/trucha disks for me.