diff --git a/server/libs/atlas/atlas-configuration/atlas-configuration-api/src/main/java/com/bytechef/atlas/configuration/util/WorkflowTaskUtils.java b/server/libs/atlas/atlas-configuration/atlas-configuration-api/src/main/java/com/bytechef/atlas/configuration/util/WorkflowTaskUtils.java
index fa057e0ca4d..5b0c404853f 100644
--- a/server/libs/atlas/atlas-configuration/atlas-configuration-api/src/main/java/com/bytechef/atlas/configuration/util/WorkflowTaskUtils.java
+++ b/server/libs/atlas/atlas-configuration/atlas-configuration-api/src/main/java/com/bytechef/atlas/configuration/util/WorkflowTaskUtils.java
@@ -54,8 +54,7 @@ public static List<WorkflowTask> getTasks(List<WorkflowTask> workflowTasks, Stri
                             returnedWorkflowTasks.addAll(getTasks(curWorkflowTasks, lastWorkflowNodeName));
                         }
 
-                        if (firstItem instanceof Map<?, ?> map && map.containsKey(WorkflowConstants.NAME) &&
-                            map.containsKey(WorkflowConstants.TYPE)) {
+                        if (firstItem instanceof Map<?, ?> map && isWorkflowTaskMap(map)) {
 
                             List<WorkflowTask> curWorkflowTasks = curList.stream()
                                 .map(item -> new WorkflowTask((Map<String, ?>) item))
@@ -75,8 +74,7 @@ public static List<WorkflowTask> getTasks(List<WorkflowTask> workflowTasks, Stri
                             }
                             // Fork/join support
                         } else if (firstItem instanceof List<?> list && !list.isEmpty() &&
-                            list.getFirst() instanceof Map<?, ?> map && map.containsKey(WorkflowConstants.NAME) &&
-                            map.containsKey(WorkflowConstants.TYPE)) {
+                            list.getFirst() instanceof Map<?, ?> map && isWorkflowTaskMap(map)) {
 
                             for (Object curItem : curList) {
                                 List<?> curSubList = (List<?>) curItem;
@@ -90,8 +88,7 @@ public static List<WorkflowTask> getTasks(List<WorkflowTask> workflowTasks, Stri
                         }
                     }
                     // Each support
-                } else if (entry.getValue() instanceof Map<?, ?> curMap &&
-                    curMap.containsKey(WorkflowConstants.NAME) && curMap.containsKey(WorkflowConstants.TYPE)) {
+                } else if (entry.getValue() instanceof Map<?, ?> curMap && isWorkflowTaskMap(curMap)) {
 
                     returnedWorkflowTasks.addAll(
                         getTasks(List.of(new WorkflowTask((Map<String, ?>) curMap)), lastWorkflowNodeName));
@@ -124,6 +121,31 @@ public static List<WorkflowTask> getTasks(List<WorkflowTask> workflowTasks, Stri
         return resultWorkflowTasks;
     }
 
+    private static boolean isWorkflowTaskMap(Map<?, ?> map) {
+        if (!map.containsKey(WorkflowConstants.NAME) || !map.containsKey(WorkflowConstants.TYPE)) {
+            return false;
+        }
+
+        // Workflow task types always follow the format: componentName/vVersion[/operation].
+        // This distinguishes real tasks from user-defined data structures that happen to have
+        // name/type keys (e.g., PostgreSQL column definitions like {"name": "ime", "type": "STRING"}).
+        return map.get(WorkflowConstants.TYPE) instanceof String type && isWorkflowNodeType(type);
+    }
+
+    private static boolean isWorkflowNodeType(String type) {
+        String[] parts = type.split("/", -1);
+
+        if (parts.length < 2 || parts.length > 3) {
+            return false;
+        }
+
+        if (parts[0].isEmpty() || !parts[1].matches("v\\d+")) {
+            return false;
+        }
+
+        return parts.length == 2 || !parts[2].isEmpty();
+    }
+
     private static List<WorkflowTask> getPrevious(List<WorkflowTask> workflowTasks, String workflowTaskName) {
         List<WorkflowTask> previousWorkflowTasks = new ArrayList<>();
 
diff --git a/server/libs/atlas/atlas-configuration/atlas-configuration-api/src/test/java/com/bytechef/atlas/configuration/util/WorkflowTaskUtilsTest.java b/server/libs/atlas/atlas-configuration/atlas-configuration-api/src/test/java/com/bytechef/atlas/configuration/util/WorkflowTaskUtilsTest.java
index 7ced2d45e51..70efbdacd7d 100644
--- a/server/libs/atlas/atlas-configuration/atlas-configuration-api/src/test/java/com/bytechef/atlas/configuration/util/WorkflowTaskUtilsTest.java
+++ b/server/libs/atlas/atlas-configuration/atlas-configuration-api/src/test/java/com/bytechef/atlas/configuration/util/WorkflowTaskUtilsTest.java
@@ -142,6 +142,28 @@ void testNonTaskListWithTypeKeyIsIgnored() {
         assertEquals(Set.of("dataStorage_1"), names);
     }
 
+    @Test
+    void testNonTaskListWithNameAndTypeKeysIsIgnored() {
+        // A parameter value that's List<Map> whose maps carry BOTH `name` and `type`
+        // must not be mistaken for tasks if the `type` value isn't a valid workflow node
+        // type (e.g., PostgreSQL column definitions use {"name": "col", "type": "STRING"}).
+        WorkflowTask task = new WorkflowTask(Map.of(
+            "name", "postgresql_1",
+            "type", "postgresql/v1/insert",
+            "parameters", Map.of(
+                "schema", "public",
+                "columns", List.of(
+                    Map.of("type", "STRING", "name", "ime"),
+                    Map.of("type", "NUMBER", "name", "age")))));
+
+        Set<String> names = WorkflowTaskUtils.getTasks(List.of(task), null)
+            .stream()
+            .map(WorkflowTask::getName)
+            .collect(Collectors.toSet());
+
+        assertEquals(Set.of("postgresql_1"), names);
+    }
+
     @Test
     void testFlattenLoopIterateeStartingWithTaskWithoutParameters() {
         WorkflowTask loop = new WorkflowTask(Map.of(
diff --git a/server/libs/modules/components/var/src/main/java/com/bytechef/component/var/action/VarSetAction.java b/server/libs/modules/components/var/src/main/java/com/bytechef/component/var/action/VarSetAction.java
index 0ffe6637d7e..446538af0d2 100644
--- a/server/libs/modules/components/var/src/main/java/com/bytechef/component/var/action/VarSetAction.java
+++ b/server/libs/modules/components/var/src/main/java/com/bytechef/component/var/action/VarSetAction.java
@@ -122,7 +122,7 @@ private enum ValueType {
     protected static OutputResponse output(
         Parameters inputParameters, Parameters connectionParameters, Context context) {
 
-        if (!inputParameters.containsKey(VALUE)) {
+        if (!inputParameters.containsKey(VALUE) || inputParameters.get(VALUE) == null) {
             return null;
         }