bug fixes for cached model internals.

andes/core/model.py

@@ -79,6 +79,9 @@ def refresh(self, name=None):
         ----------
         name : str, list, optional
             name or list of cached to refresh, by default None for refreshing all
+
+        TODO: bug found in Example notebook 2. Time domain initialization fails
+        after refreshing.
         """
         if name is None:
             for name in self._callbacks.keys():

andes/system.py

@@ -710,6 +710,12 @@ def store_adder_setter(self, models):
             if not mdl.n:
                 continue
 
+            # Fixes an issue if the cache was manually built but stale
+            # after assigning addresses for simulation
+            # Assigning memory will affect the cache of `v_adders` and `e_adders`.
+
+            mdl.cache.refresh()
+
             # ``getters` that retrieve variable values from DAE
             for var in mdl.cache.v_getters.values():
                 self._getters[var.v_code].append(var)