Most likely your problem is that you are trying to load a model into something that has not been defined correctly. You cant just call torch::nn::Sequential savedSeq;, and then try to load in a model. You need to add the same layers that your saved model had. Your model simply has no parameters, thats why savedSeq->named_parameters() is empty, and no output will be printed to your console.
The code snippet that I posted above saves the Sequential, and then loads it again. As you can see, it outputs the values correctly