diff --git a/crates/oa-desktop/src/app/process_canvas.rs b/crates/oa-desktop/src/app/process_canvas.rs
index 089275bd..bb1be8d9 100644
--- a/crates/oa-desktop/src/app/process_canvas.rs
+++ b/crates/oa-desktop/src/app/process_canvas.rs
@@ -65,6 +65,7 @@ impl App {
                 owner: context.owner,
                 revision: context.revision,
                 epoch: lifetime,
+                scenario_view: None,
             };
             if self.behavior.has_pending()
                 || self.draft_dirty()
diff --git a/crates/oa-desktop/src/app/scenario_diagram/adoption_tests.rs b/crates/oa-desktop/src/app/scenario_diagram/adoption_tests.rs
index 68b2044b..d45e6e77 100644
--- a/crates/oa-desktop/src/app/scenario_diagram/adoption_tests.rs
+++ b/crates/oa-desktop/src/app/scenario_diagram/adoption_tests.rs
@@ -166,66 +166,64 @@ fn source_cross_layer_owner_retarget_undo_redo_keeps_requested_saved_uuid() {
     retarget(true);
 }
 
-#[test]
-fn source_deleted_owner_and_saved_view_mount_unavailable_instead_of_another_behavior() {
-    iced::futures::executor::block_on(async {
-        let mut f = fixture();
-        let before = f.app.document.snapshot();
-        let mut expected = before.decoded.project.clone();
-        assert!(expected.elements.remove(&f.owner).is_some());
-        assert!(expected.diagrams.remove(&f.view).is_some());
-        assert!(expected.elements.contains_key(&f.same_layer));
-        assert!(
-            expected
-                .elements
-                .values()
-                .any(|e| e.kind() == Kind::Process)
-        );
-        adopt_from_source(&mut f.app, &expected);
-        assert_eq!(
-            f.app.behavior.scenario.representation(),
-            Some(Representation::Saved { diagram: f.view })
-        );
-        let adopted = f.app.document.snapshot();
-        let revision = f.app.document.revision();
-        let mut mounted = Mounted::new(&mut f.app).await;
-        let geometry = mounted.geometry(&f.app);
-        assert!(
-            geometry
-                .containers
-                .contains_key(&widget::Id::from("scenario-viewport-unavailable"))
-        );
-        assert!(
-            !geometry
-                .containers
-                .contains_key(&widget::Id::from("scenario-viewport"))
-        );
-        assert_eq!(f.app.project(), &expected);
-        assert_eq!(f.app.document.bundle(), &adopted.bundle);
-        assert_eq!(
-            f.app.document.revision(),
-            revision,
-            "mounting unavailable must remain passive"
-        );
+#[tokio::test]
+async fn source_deleted_owner_and_saved_view_mount_unavailable_instead_of_another_behavior() {
+    let mut f = fixture();
+    let before = f.app.document.snapshot();
+    let mut expected = before.decoded.project.clone();
+    assert!(expected.elements.remove(&f.owner).is_some());
+    assert!(expected.diagrams.remove(&f.view).is_some());
+    assert!(expected.elements.contains_key(&f.same_layer));
+    assert!(
+        expected
+            .elements
+            .values()
+            .any(|e| e.kind() == Kind::Process)
+    );
+    adopt_from_source(&mut f.app, &expected);
+    assert_eq!(
+        f.app.behavior.scenario.representation(),
+        Some(Representation::Saved { diagram: f.view })
+    );
+    let adopted = f.app.document.snapshot();
+    let revision = f.app.document.revision();
+    let mut mounted = Mounted::new(&mut f.app).await;
+    let geometry = mounted.geometry(&f.app);
+    assert!(
+        geometry
+            .containers
+            .contains_key(&widget::Id::from("scenario-viewport-unavailable"))
+    );
+    assert!(
+        !geometry
+            .containers
+            .contains_key(&widget::Id::from("scenario-viewport"))
+    );
+    assert_eq!(f.app.project(), &expected);
+    assert_eq!(f.app.document.bundle(), &adopted.bundle);
+    assert_eq!(
+        f.app.document.revision(),
+        revision,
+        "mounting unavailable must remain passive"
+    );
 
-        let _ = f.app.update(Message::Undo);
-        assert_saved(&f.app, f.view, f.owner, Layer::Oa);
-        assert_eq!(f.app.document.bundle(), &before.bundle);
-        let _ = f.app.update(Message::Redo);
-        assert_eq!(
-            f.app.behavior.scenario.representation(),
-            Some(Representation::Saved { diagram: f.view })
-        );
-        mounted.settle(&mut f.app).await;
-        assert!(
-            mounted
-                .geometry(&f.app)
-                .containers
-                .contains_key(&widget::Id::from("scenario-viewport-unavailable"))
-        );
-        assert_eq!(f.app.project(), &expected);
-        assert_eq!(f.app.document.bundle(), &adopted.bundle);
-    });
+    let _ = f.app.update(Message::Undo);
+    assert_saved(&f.app, f.view, f.owner, Layer::Oa);
+    assert_eq!(f.app.document.bundle(), &before.bundle);
+    let _ = f.app.update(Message::Redo);
+    assert_eq!(
+        f.app.behavior.scenario.representation(),
+        Some(Representation::Saved { diagram: f.view })
+    );
+    mounted.settle(&mut f.app).await;
+    assert!(
+        mounted
+            .geometry(&f.app)
+            .containers
+            .contains_key(&widget::Id::from("scenario-viewport-unavailable"))
+    );
+    assert_eq!(f.app.project(), &expected);
+    assert_eq!(f.app.document.bundle(), &adopted.bundle);
 }
 
 #[test]