diff --git a/packages/editor/src/editor/Canvas.tsx b/packages/editor/src/editor/Canvas.tsx
index 6ece543..0ad77d1 100644
--- a/packages/editor/src/editor/Canvas.tsx
+++ b/packages/editor/src/editor/Canvas.tsx
@@ -427,6 +427,10 @@ export function Canvas(props: CanvasProps) {
                 e.stopPropagation();
                 if (node.locked) return;
 
+                // Right-click selection is handled by the contextmenu handler.
+                // Important: don't collapse a multi-selection on pointerdown.
+                if (e.button === 2) return;
+
                 // ctrl click: multi-select toggle
                 if (props.keyboard.ctrl) {
                   props.onToggleSelect(node.id);
@@ -434,9 +438,6 @@ export function Canvas(props: CanvasProps) {
                 }
 
                 props.onSelectSingle(node.id);
-                // right click should not start move
-                if (e.button === 2) return;
-
                 props.onBeginMove(e);
               }}
               onContextMenu={(e) => openContextMenu(e, node.id)}