Path Tracing shadow artifacts

First picture lit is used

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Second picture PT is used, this occurs under certain angles of incidence.

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1. Download attached project
2. Open test project
3. Observe no artifacts in lit mode from the startup position
4. Switch to Path Tracing
5. Observe shadows artifacts on the sphere
   1. Observation Location:

      BugItGo 205.236980 75.327327 172.541467 -6.200000 -92.599996
      -0.000000

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