You aren't confused. There was a Clone Wars series that introduced planets such as Hypori to the screen, had the epicness leading up to Episode III, and the explanation for why Grievous was a hacking chest-dented idiot in the movie rather than a competent melee fighter.
This is YACWS (Yet Another Clone Wars Saga). The Clone Wars saga is a long period, and they've fit all the canon into a coherent line SO FAR. This doesn't, however, mean they won't eventually bog the period down into a case of "This goes here, replacing this, oh and this too".