PC - bugged lighting on the upper level of Hawkins Lab
Step 1: Go up stairs to the upper level on Hawkins
Step 2: Starting between the generator and the staircase, enter the hallway that leads to the other staircase
Step 3: Observe the floor as you walk. The entire floor will brighten up, leaving weird shadows along the wall
If it doesn't work, try standing in different spots along the hallway. When you stand still in certain spots, the lighting stays this way.
Additional Info: Playing Leatherface with P2 cosmetics and Claudette's face. All living survivors were on the hook in the basement at the time, and one was being sacrificed.

Comments
hawkings lighting is broken in general, you can notice that in other parts of the map aswell