Hollow Coloca 99% (Ori and the Will of the Wisps)

Looks like some piece of card not opened, I have, for example, in the hollow(or whatever the location of the dark and spiders is called) has been shaded small passage to the right of the altar with the extra shard, because I opened the cut, and immediately teleported.

vicbic
The rally was opened/passed? It appears to open as well as the icon the finish line completed the race, therefore I shall not take too long looking for