properly flush batch

src/wasm-lib/kcl/src/execution/mod.rs

@@ -740,6 +740,29 @@
                 )
             })?;
 
+        // Flush the batch with all the end commands.
+        // If we don't do this then some programs might not fully finish executing.
+        self.engine
+            .flush_batch(true, SourceRange::default())
+            .await
+            .map_err(|e| {
+                let module_id_to_module_path: IndexMap<ModuleId, ModulePath> = exec_state
+                    .global
+                    .path_to_source_id
+                    .iter()
+                    .map(|(k, v)| ((*v), k.clone()))
+                    .collect();
+
+                KclErrorWithOutputs::new(
+                    e,
+                    exec_state.global.operations.clone(),
+                    exec_state.global.artifact_commands.clone(),
+                    exec_state.global.artifact_graph.clone(),
+                    module_id_to_module_path,
+                    exec_state.global.id_to_source.clone(),
+                )
+            })?;
+
         if !self.is_mock() {
             let mut mem = exec_state.memory().clone();
             mem.restore_env(env_ref);