diff --git a/core/src/main/python/update.py b/core/src/main/python/update.py
index 508bdd552..349b4e441 100644
--- a/core/src/main/python/update.py
+++ b/core/src/main/python/update.py
@@ -240,6 +240,8 @@ def __update_online(model, model_context, aliases):
     exit_code = 0
 
     __update_online_domain(model_context)
+    __wlst_helper.edit()
+    __wlst_helper.start_edit()
 
     topology_updater.set_server_groups()
     __update_online_domain(model_context)
diff --git a/core/src/main/python/wlsdeploy/tool/create/domain_creator.py b/core/src/main/python/wlsdeploy/tool/create/domain_creator.py
index f064b54cf..c32850c42 100644
--- a/core/src/main/python/wlsdeploy/tool/create/domain_creator.py
+++ b/core/src/main/python/wlsdeploy/tool/create/domain_creator.py
@@ -758,7 +758,7 @@ def __create_clusters_and_servers(self, location):
 
         # create placeholders for JDBC resources that may be referenced in cluster definition.
         resources_dict = self.model.get_model_resources()
-        self.topology_helper.create_placeholder_jdbc_resources(resources_dict)
+        jdbc_names = self.topology_helper.create_placeholder_jdbc_resources(resources_dict)
         cluster_nodes = dictionary_utils.get_dictionary_element(self._topology, CLUSTER)
         if len(cluster_nodes) > 0:
             self._create_named_mbeans(CLUSTER, cluster_nodes, location, log_created=True)
@@ -779,6 +779,9 @@ def __create_clusters_and_servers(self, location):
         if len(server_nodes) > 0:
             self._create_named_mbeans(SERVER, server_nodes, location, log_created=True)
 
+        # targets may have been inadvertently assigned when clusters were added
+        self.topology_helper.clear_jdbc_placeholder_targeting(jdbc_names)
+
         self.logger.exiting(class_name=self.__class_name, method_name=_method_name)
         return
 
diff --git a/core/src/main/python/wlsdeploy/tool/deploy/topology_updater.py b/core/src/main/python/wlsdeploy/tool/deploy/topology_updater.py
index 1fa639455..c7bb1c80e 100644
--- a/core/src/main/python/wlsdeploy/tool/deploy/topology_updater.py
+++ b/core/src/main/python/wlsdeploy/tool/deploy/topology_updater.py
@@ -102,7 +102,7 @@ def update(self):
         self._topology_helper.create_placeholder_server_templates(self._topology)
 
         # create placeholders for JDBC resources that may be referenced in cluster definition.
-        self._topology_helper.create_placeholder_jdbc_resources(self._resources)
+        jdbc_names = self._topology_helper.create_placeholder_jdbc_resources(self._resources)
 
         self._process_section(self._topology, folder_list, CLUSTER, location)
         self._process_section(self._topology, folder_list, SERVER_TEMPLATE, location)
@@ -113,6 +113,9 @@ def update(self):
 
         self._process_section(self._topology, folder_list, SERVER, location)
 
+        # targets may have been inadvertently assigned when clusters were added
+        self.topology_helper.clear_jdbc_placeholder_targeting(jdbc_names)
+
         self._process_section(self._topology, folder_list, MIGRATABLE_TARGET, location)
 
         new_managed_server_list, new_configured_cluster_list = self._create_list_of_setservergroups_targets()
diff --git a/core/src/main/python/wlsdeploy/tool/util/topology_helper.py b/core/src/main/python/wlsdeploy/tool/util/topology_helper.py
index 3b9fd0e3e..c8d29f030 100644
--- a/core/src/main/python/wlsdeploy/tool/util/topology_helper.py
+++ b/core/src/main/python/wlsdeploy/tool/util/topology_helper.py
@@ -93,8 +93,9 @@ def create_placeholder_jdbc_resources(self, resources):
         Create a placeholder JDBC resource for each name in the resources section.
         This is necessary because cluster attributes may reference JDBC resources.
         :param resources: the resource model nodes
+        :return: a list of names of created placeholders
         """
-        self.create_placeholder_named_elements(LocationContext(), JDBC_SYSTEM_RESOURCE, resources)
+        return self.create_placeholder_named_elements(LocationContext(), JDBC_SYSTEM_RESOURCE, resources)
 
     def create_placeholder_named_elements(self, location, model_type, model_nodes):
         """
@@ -103,8 +104,10 @@ def create_placeholder_named_elements(self, location, model_type, model_nodes):
         :param location: the location for the nodes to be added
         :param model_type: the type of the specified model nodes
         :param model_nodes: the model nodes
+        :return: a list of names of created placeholders
         """
         _method_name = 'create_placeholder_named_elements'
+        holder_names = []
         original_location = self.wlst_helper.get_pwd()
         resource_location = LocationContext(location).append_location(model_type)
 
@@ -125,8 +128,10 @@ def create_placeholder_named_elements(self, location, model_type, model_nodes):
                     resource_location.add_name_token(token, name)
                     deployer_utils.create_and_cd(resource_location, existing_names, self.alias_helper)
                     self._update_placeholder(model_type, name, resource_location)
+                    holder_names.append(name)
 
         self.wlst_helper.cd(original_location)
+        return holder_names
 
     def _update_placeholder(self, type_name, name, location):
         """
@@ -148,6 +153,26 @@ def _update_placeholder(self, type_name, name, location):
                     self.wlst_helper.set('Name', name)
                 self.wlst_helper.cd(original_location)
 
+    def clear_jdbc_placeholder_targeting(self, jdbc_names):
+        """
+        Remove any targets for the JDBC resources in the specified list of names.
+        Targets may have been inadvertently assigned when clusters were added after JDBC placeholders.
+        :param jdbc_names: names of placeholders to clear
+        """
+        _method_name = 'clear_jdbc_placeholder_targeting'
+        resource_location = LocationContext().append_location(JDBC_SYSTEM_RESOURCE)
+        token = self.alias_helper.get_name_token(resource_location)
+
+        for name in jdbc_names:
+            self.logger.info('WLSDPLY-19404', JDBC_SYSTEM_RESOURCE, name, class_name=self.__class_name,
+                             method_name=_method_name)
+
+            resource_location.add_name_token(token, name)
+            wlst_path = self.alias_helper.get_wlst_attributes_path(resource_location)
+            if self.wlst_helper.path_exists(wlst_path):
+                mbean = self.wlst_helper.get_mbean_for_wlst_path(wlst_path)
+                mbean.setTargets(None)
+
     def qualify_nm_properties(self, type_name, model_nodes, base_location, model_context, attribute_setter):
         """
         For the NM properties MBean, update the keystore file path to be fully qualified with the domain directory.
diff --git a/core/src/main/resources/oracle/weblogic/deploy/aliases/category_modules/Server.json b/core/src/main/resources/oracle/weblogic/deploy/aliases/category_modules/Server.json
index 8c9fbb8aa..c1f5bc95f 100644
--- a/core/src/main/resources/oracle/weblogic/deploy/aliases/category_modules/Server.json
+++ b/core/src/main/resources/oracle/weblogic/deploy/aliases/category_modules/Server.json
@@ -250,7 +250,7 @@
                 "LogFileSeverity":                               [ {"version": "[10,)",                "wlst_mode": "both",    "wlst_name": "LogFileSeverity",                               "wlst_path": "WP001", "value": {"default": "Trace" }, "wlst_type": "string" } ],
                 "LogMonitoringEnabled":                          [ {"version": "[12.2.1,)",            "wlst_mode": "both",    "wlst_name": "LogMonitoringEnabled",                          "wlst_path": "WP001", "value": {"default": "true"  }, "wlst_type": "boolean"} ],
                 "LogMonitoringIntervalSecs":                     [ {"version": "[12.2.1,)",            "wlst_mode": "both",    "wlst_name": "LogMonitoringIntervalSecs",                     "wlst_path": "WP001", "value": {"default": 30      }, "wlst_type": "integer"} ],
-                "LogMonitoringMaxThrottleMessageSignatureCount": [ {"version": "[12.2.1.1,)",          "wlst_mode": "online",  "wlst_name": "LogMonitoringMaxThrottleMessageSignatureCount", "wlst_path": "WP001", "value": {"default": 1000    }, "wlst_type": "integer"} ,
+                "LogMonitoringMaxThrottleMessageSignatureCount": [ {"version": "[12.2.1.1,12.2.1.3)",  "wlst_mode": "online",  "wlst_name": "LogMonitoringMaxThrottleMessageSignatureCount", "wlst_path": "WP001", "value": {"default": 1000    }, "wlst_type": "integer"} ,
                                                                    {"version": "[12.2.1.3,)",          "wlst_mode": "both",    "wlst_name": "LogMonitoringMaxThrottleMessageSignatureCount", "wlst_path": "WP001", "value": {"default": 1000    }, "wlst_type": "integer"} ],
                 "LogMonitoringThrottleMessageLength":            [ {"version": "[12.2.1,)",            "wlst_mode": "both",    "wlst_name": "LogMonitoringThrottleMessageLength",            "wlst_path": "WP001", "value": {"default": 50      }, "wlst_type": "integer"} ],
                 "LogMonitoringThrottleThreshold":                [ {"version": "[12.2.1,)",            "wlst_mode": "both",    "wlst_name": "LogMonitoringThrottleThreshold",                "wlst_path": "WP001", "value": {"default": 1500    }, "wlst_type": "integer"} ],
diff --git a/core/src/main/resources/oracle/weblogic/deploy/messages/wlsdeploy_rb.properties b/core/src/main/resources/oracle/weblogic/deploy/messages/wlsdeploy_rb.properties
index c5def216b..3335edd7b 100644
--- a/core/src/main/resources/oracle/weblogic/deploy/messages/wlsdeploy_rb.properties
+++ b/core/src/main/resources/oracle/weblogic/deploy/messages/wlsdeploy_rb.properties
@@ -1345,6 +1345,7 @@ WLSDPLY-19400=Creating placeholder for server template {0}
 WLSDPLY-19401=Creating placeholder for JDBC resource {0}
 WLSDPLY-19402=Creating placeholder for Server resource {0}
 WLSDPLY-19403=Creating placeholder for {0} {1}
+WLSDPLY-19404=Clearing targets for {0} placeholder {1}
 
 # wlsdeploy/tool/util/variable_injector.py
 WLSDPLY-19500=Model variable injector values loaded from location {0}