Removed except clause in shifted_correlation to always raise an exception.

mdevaluate/correlation.py

@@ -192,17 +192,15 @@ def shifted_correlation(
         )
     else:
         pool = ProcessPool(nodes=nodes)
+        # Use try finally instead of a context manager to ensure the pool is
+        # restarted in case of working in a jupyter-notebook,
+        # otherwise the kernel has to be restarted.
         try:
             result = np.array(
                 pool.map(
                     partial(get_correlation, idx=idx, selector=selector), start_frames
                 )
             )
-        except Exception:
-            logger.warning(
-                "WARNING: Something went wrong during multiprocessing "
-                "in shifted_correlation."
-            )
         finally:
             pool.terminate()
             pool.restart()