diff --git a/crates/ui-egui/src/edit_window.rs b/crates/ui-egui/src/edit_window.rs
index f425066..65e31ca 100644
--- a/crates/ui-egui/src/edit_window.rs
+++ b/crates/ui-egui/src/edit_window.rs
@@ -3042,7 +3042,8 @@ mod tests {
             .shapes
             .iter()
             .filter_map(|shape| match &shape.shape {
-                Shape::Mesh(mesh) if !mesh.vertices.is_empty() && mesh.vertices.iter().all(|vertex| clip_rect.contains(vertex.pos)) => {
+                // The waveform's columns snap to physical pixels and fade out over half of one.
+                Shape::Mesh(mesh) if !mesh.vertices.is_empty() && mesh.vertices.iter().all(|vertex| clip_rect.expand(1.0).contains(vertex.pos)) => {
                     Some(mesh.vertices.iter().map(|vertex| vertex.pos).collect())
                 }
                 _ => None,
diff --git a/crates/ui-egui/src/theme.rs b/crates/ui-egui/src/theme.rs
index e88e4fa..0cf5b9b 100644
--- a/crates/ui-egui/src/theme.rs
+++ b/crates/ui-egui/src/theme.rs
@@ -502,7 +502,8 @@ mod tests {
         drop(inner);
         drop(outer);
         drop(app);
-        assert!(rx.recv_timeout(std::time::Duration::from_secs(5)).is_ok(), "the palette lock must be released when every holder drops it");
+        // Other tests compete for the lock too, and some hold it for seconds: allow for a queue.
+        assert!(rx.recv_timeout(std::time::Duration::from_secs(120)).is_ok(), "the palette lock must be released when every holder drops it");
     }
 
     #[test]