Compare the offset openings
The Thief version of the introductory corridor uses the same recognizable pair of crystal openings as the Warrior version, but clears them from different sides. Moving away while correctly positioned pulls an object into the space just vacated.
Turning space is part of the solve
The winding courtyard with one distant crystal tests the route ahead of the Thief, not just the route under the crystal. The dragon rooms add threats to those standing positions. Match the starting layout before following any recorded sequence.