LumenRT Update 5: Masked areas of 3SM affect vehicles and characters animated on paths

When using a 3SM in LumenRT, geometry in any areas that are masked (hidden) still affect vehicles and characters that are driving or walking in these areas. If the masked (hidden) area is higher than the other geometry, any objects placed there will float above the other geometry because the masked (hidden) area of the 3SM is still detected. You can place vehicles and characters correctly if you uncheck the 3SM layer, but when you later recheck the 3SM layer the vehicles and characters movements will be adjusted to the masked (hidden) areas of the 3SM, even if you lock the transform of the vehicles and characters.

This is unacceptable behavior and needs to be fixed!