diff --git a/node-graph/libraries/graphic-types/src/graphic.rs b/node-graph/libraries/graphic-types/src/graphic.rs
index cbee1472d1..039ff3d111 100644
--- a/node-graph/libraries/graphic-types/src/graphic.rs
+++ b/node-graph/libraries/graphic-types/src/graphic.rs
@@ -1835,7 +1835,7 @@ mod run_tests {
 		};
 		// SAFETY: the list serves only while `persistent` is live, and the
 		// promote under test replaces every borrow it carries.
-		let (paint, _) = transient.alloc(unsafe { core_types::record::erase_static(published) }).unwrap();
+		let (paint, _) = transient.alloc_sized_keyed(unsafe { core_types::record::erase_static(published) }, 0).unwrap();
 
 		let occupied = persistent.occupancy();
 		let (layout, span, _frames) = promote_paint_field(Some(paint), 1, &transient, &persistent);
@@ -1859,7 +1859,7 @@ mod run_tests {
 			let Some(Graphic::Vector(vector)) = paint.element(0) else { panic!("the paint carries a vector") };
 			vector.point_domain.positions().as_ptr()
 		};
-		let (paint, _) = transient.alloc(paint).unwrap();
+		let (paint, _) = transient.alloc_sized_keyed(paint, 0).unwrap();
 
 		let (layout, span, _frames) = promote_paint_field(Some(paint), 2, &transient, &persistent);
 		let served = promoted_paint(&span, &layout, 0, &persistent);
diff --git a/node-graph/nodes/graphic/src/graphic.rs b/node-graph/nodes/graphic/src/graphic.rs
index 5a734cc85e..9f156890b1 100644
--- a/node-graph/nodes/graphic/src/graphic.rs
+++ b/node-graph/nodes/graphic/src/graphic.rs
@@ -214,7 +214,7 @@ where
 	};
 	let park_paint = |paint: Option<List<Graphic<'static>>>| -> Result<Option<&'e List<Graphic<'static>>>, Interrupt> {
 		match paint {
-			Some(paint) => Ok(Some(arena.alloc(paint).ok_or_else(exhausted)?.0)),
+			Some(paint) => Ok(Some(arena.alloc_sized_keyed(paint, 0).ok_or_else(exhausted)?.0)),
 			None => Ok(None),
 		}
 	};
diff --git a/node-graph/nodes/path-bool/src/lib.rs b/node-graph/nodes/path-bool/src/lib.rs
index 538eb1985d..9a828a5cd0 100644
--- a/node-graph/nodes/path-bool/src/lib.rs
+++ b/node-graph/nodes/path-bool/src/lib.rs
@@ -69,7 +69,7 @@ fn boolean_core<'e>(
 	};
 	let park_paint = |paint: Option<List<Graphic<'static>>>| -> Result<Option<&'e List<Graphic>>, core_types::gpoll::Interrupt> {
 		match paint {
-			Some(list) => Ok(Some(arena.alloc(list).ok_or_else(exhausted)?.0)),
+			Some(list) => Ok(Some(arena.alloc_sized_keyed(list, 0).ok_or_else(exhausted)?.0)),
 			None => Ok(None),
 		}
 	};
@@ -82,7 +82,7 @@ fn boolean_core<'e>(
 	let layer_path = arena.alloc(layer_path).ok_or_else(exhausted)?.0;
 	// Snapshot the input layers so the renderer can recurse into them for
 	// editor click-target preservation.
-	let merged_layers = arena.alloc(snapshot).ok_or_else(exhausted)?.0;
+	let merged_layers = arena.alloc_sized_keyed(snapshot, 0).ok_or_else(exhausted)?.0;
 
 	Ok((
 		element,
diff --git a/node-graph/nodes/vector/src/vector_nodes.rs b/node-graph/nodes/vector/src/vector_nodes.rs
index 5dbf982820..3961d95cf5 100644
--- a/node-graph/nodes/vector/src/vector_nodes.rs
+++ b/node-graph/nodes/vector/src/vector_nodes.rs
@@ -276,8 +276,10 @@ fn assign_colors_graphic_extent(
 
 pub use _assign_colors_graphic_mod::assign_colors_graphic_entries;
 
+/// Keyed, so a group-free paint's promote moves this header rather than
+/// cloning the content it owns.
 fn park_paint<'e>(arena: &'e core_types::arena::Arena, paint: List<Graphic<'static>>) -> Result<&'e List<Graphic<'static>>, Interrupt> {
-	let (parked, _) = arena.alloc(paint).ok_or(GraphError {
+	let (parked, _) = arena.alloc_sized_keyed(paint, 0).ok_or(GraphError {
 		kind: core_types::gpoll::ErrorKind::ArenaExhausted,
 		trace: Vec::new(),
 	})?;
@@ -1555,7 +1557,7 @@ fn emit_legacy_lane<'e>(
 	let merged_layers = output
 		.attribute::<Option<List<Graphic>>>(ATTR_EDITOR_MERGED_LAYERS, lane)
 		.and_then(|layers| layers.as_ref())
-		.map(|layers| arena.alloc(layers.clone()).ok_or_else(exhausted).map(|(parked, _)| parked))
+		.map(|layers| arena.alloc_sized_keyed(layers.clone(), 0).ok_or_else(exhausted).map(|(parked, _)| parked))
 		.transpose()?;
 
 	Ok((
@@ -1884,7 +1886,7 @@ fn flatten_path_core<'e>(
 	let layer_path = arena.alloc(layer_path).ok_or_else(exhausted)?.0;
 	// Snapshot the input layers so the renderer can recurse into them for
 	// editor click-target preservation, as the boolean operation does.
-	let merged_layers = arena.alloc(snapshot).ok_or_else(exhausted)?.0;
+	let merged_layers = arena.alloc_sized_keyed(snapshot, 0).ok_or_else(exhausted)?.0;
 
 	Ok((output, Attr(DAffine2::IDENTITY), Attr(fill), Attr(stroke), Attr(layer_path.as_slice()), Attr(Some(merged_layers))))
 }