@fabricionarcizo @xta0  I am having the same issue. The program breaks at this line in module.h file:
IValue forward(std::vector<IValue> inputs) {
    return get_method("forward")(std::move(inputs)); // here it breaks
  }

PyTorch: 1.4.0
LibTorch: 1.4.0
iOS 13.5
XCode 11.5
Did you manage to resolve this? I happened to notice that PyTorch iOS tutorial project on PyTorch website “HelloWorld” also breaks in release mode. The model runs okay in debug mode.