There are missing button activators in Path of Endurance. I can't finish level.
pixel_player83238906 Search? I watched this https://www.youtube.com/watch?v=8A1OZOSi25U he moves the stone all the way to the top using no portals. It is possible to move the stone to the top as in this video as well https://www.youtube.com/watch?v=_U5rUZ4UTjQ&feature=youtu.be So if that button is missing you can contact support and wait for them to fix it or do it manually.
pixel_player83238906
Some useful diagrams can be found here: https://forum.pixelfederation.com/diggysadventure/d/166023-path-of-endurance/68
