Fix 2D bones ignored by onion skinning

Fixes #27819.

1 files changed, 8 insertions, 0 deletions

diff --git a/scene/animation/animation_player.cpp b/scene/animation/animation_player.cpp
index a5955d57f7..75088c79fe 100644
--- a/scene/animation/animation_player.cpp
+++ b/scene/animation/animation_player.cpp
@@ -37,12 +37,20 @@
 
 #ifdef TOOLS_ENABLED
 #include "editor/editor_settings.h"
+#include "scene/2d/skeleton_2d.h"
 
 void AnimatedValuesBackup::update_skeletons() {
 
 	for (int i = 0; i < entries.size(); i++) {
 		if (entries[i].bone_idx != -1) {
+			// 3D bone
 			Object::cast_to<Skeleton>(entries[i].object)->notification(Skeleton::NOTIFICATION_UPDATE_SKELETON);
+		} else {
+			Bone2D *bone = Object::cast_to<Bone2D>(entries[i].object);
+			if (bone && bone->skeleton) {
+				// 2D bone
+				bone->skeleton->_update_transform();
+			}
 		}
 	}
 }