Creating view in render.py gets stuck when being used in Flask application

[Tigran01]

Everything works fine up to the point when it's time for render.py to run, particularly it gets stuck after "Configuration loaded successfully" when going creating view:

        # create view
        from AnimatedDrawings.animated_drawings.view.view import View
        view = View.create_view(cfg.view)
        logging.info("View created successfully.")
        print("View created successfully.")

[Tigran01]

Worked on Linux.