Guess what, I think that's the answer to your problem.... Go to post #3 and go to the Quadview MultiWindow and flash that. I bet that's the reason OmniSwitcher was working. Make a backup first.Trying out 8.2 working good so far. My personal issue is for the first time with your rom I have flashed omniswitch and it fails to gain system permissions. This is the first time on your roms that this has happened. It has always happened on other touchwiz roms except yours until now. Works fine on 8.0 and wx5, but not this time any ideas?
My ROMs: Wicked X & Wicked S5 Xperience