C++ to Python conversion crash

[Yorch]

The function io.read_vector_history_from_file crashes when used on Python and gives the following error:

TypeError: Unable to convert function return value to a Python type! The signature was
(vector_size: int, file_name: str) -> Dict[float, Eigen::Matrix<double,-1,1,0,-1,1>]

I've been told you are aware of this and that for some people this doesn't happen. I attach the contents of my conda environment so that hopefully the problematic module(s) can be identified.