Update testTaskGate.ps1

testTaskGate.ps1

@@ -482,10 +482,14 @@ $style = @'
 
         children.forEach(cb => {
           cb.checked = master.checked;
+        });
 
-          // Trigger native change event so the suboption logic runs
+        // Now simulate change events after setting all checkboxes
+        setTimeout(() => {
+          children.forEach(cb => {
             cb.dispatchEvent(new Event('change'));
           });
+        }, 0);
       }