From d968c3e5d699a27a7c61789e5c015633b689da41 Mon Sep 17 00:00:00 2001
From: LanzaSchneider <lanzaschneider@conchship.net>
Date: Tue, 25 Nov 2025 11:14:47 +0800
Subject: [PATCH] Fix AnimationMixer error spam by respecting cache validity on
 invalid root_node

---
 scene/animation/animation_mixer.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scene/animation/animation_mixer.cpp b/scene/animation/animation_mixer.cpp
index 972127a2e1f..5890baa2ef0 100644
--- a/scene/animation/animation_mixer.cpp
+++ b/scene/animation/animation_mixer.cpp
@@ -660,6 +660,7 @@ bool AnimationMixer::_update_caches() {
 
 	Node *parent = get_node_or_null(root_node);
 	if (!parent) {
+		WARN_PRINT_ONCE(vformat("'%s' is an invalid root_node path, caches will not be built, please check the root_node assignment on: %s", root_node, get_path()));
 		cache_valid = false;
 		return false;
 	}
@@ -1000,7 +1001,7 @@ bool AnimationMixer::_update_caches() {
 
 void AnimationMixer::_process_animation(double p_delta, bool p_update_only) {
 	_blend_init();
-	if (_blend_pre_process(p_delta, track_count, track_map)) {
+	if (cache_valid && _blend_pre_process(p_delta, track_count, track_map)) {
 		_blend_capture(p_delta);
 		_blend_calc_total_weight();
 		_blend_process(p_delta, p_update_only);