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Broken Pillar Collision on Forgotten Ruins Near Vecna's Alchemy Lab
Step 1 : Play on Forgotten Ruins as Myers or Ghostface.
Step 2 : Go to the shown place in the Dungeons and attempt to stalk.
Step 3 : Notice that you clip into the wall here and can stalk through this object without the Survivor seeing you.
Additional information
This is easily replicable 100% of the time as these Killers. For some reason they can push their camera into this pillar here, and stalk that way. A Survivor can't possibly reveal Ghostface from this angle and Myers has the same issue. It's likely a Survivor couldn't Stare Down the Unknown from this angle either, but Unknown could still shoot through it. It's possible other Killers like Huntress, Cenobite, or Singularity could even shoot through this broken spot, or that Singularity could see though it with his cameras but Survivors couldn't. This is just one more glitch on this map but when I posted it before, it got buried due to being part of a duplicate report.