id summary reporter owner description type status milestone component version severity resolution keywords cc 13467 RTTI issue with non-polymorphic types in debug mode jlodos@… Robert Ramey "While serializing non-polymorphic types without RTTI in debug mode you get compiler warnings and execution crashes. In release mode everything works fine. This is because dynamic_cast is used for debugging purposes. The code is in smart_cast.hpp, starting in line 87: {{{ #if ! defined(NDEBUG) \ || defined(__MWERKS__) // do a checked dynamic cast return cross::cast(u); #else }}} I believe the first line could be replaced with: {{{ #if (! defined(NDEBUG) && ! defined(BOOST_NO_RTTI) ) \ }}} This solved the issue for me. " Bugs new To Be Determined serialization Boost 1.67.0 Problem serialization rtti