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For those who are still curious about this problem, I have conducted research on it. In my project, I encountered a Segmentation Fault in PCL due to two specific CPP compile flags. However, after commenting out these flags, PCL works perfectly fine.

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DEIGEN_DONT_VECTORIZE -DEIGEN_MAX_ALIGN_BYTES=0")

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