From 8da0986147d6d9a4eff02f7ca2fec964ae89360a Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 5 Mar 2026 03:58:41 +0000
Subject: [PATCH] Exclude SaveCachedPose from Pass 1 upstream BFS to fix layer
 assignment

Co-authored-by: LoogLong <86428208+LoogLong@users.noreply.github.com>
---
 FModel/ViewModels/AnimGraphViewModel.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/FModel/ViewModels/AnimGraphViewModel.cs b/FModel/ViewModels/AnimGraphViewModel.cs
index 3e56020e..58c7fcc3 100644
--- a/FModel/ViewModels/AnimGraphViewModel.cs
+++ b/FModel/ViewModels/AnimGraphViewModel.cs
@@ -202,6 +202,8 @@ public class AnimGraphViewModel
 
         // Pass 1: Build graph layers from AnimGraphNode_Root nodes.
         // Each _Root node defines an animation blueprint layer (e.g. "AnimGraph").
+        // SaveCachedPose nodes are excluded so their input chains don't get pulled
+        // into Root layers; Pass 3 assigns SaveCachedPose nodes to the correct layer.
         var graphRoots = vm.Nodes
             .Where(n => n.ExportType.EndsWith("_Root", StringComparison.OrdinalIgnoreCase))
             .ToList();
@@ -210,7 +212,8 @@ public class AnimGraphViewModel
         foreach (var rootNode in graphRoots)
         {
             if (!assigned.Add(rootNode)) continue;
-            var layerNodes = CollectUpstream(rootNode, upstreamOf, assigned);
+            var layerNodes = CollectUpstream(rootNode, upstreamOf, assigned,
+                excludeNode: IsSaveCachedPoseNode);
             AddLayer(vm, layerNodes, layerIndex++);
             primaryGraphLayer ??= vm.Layers[^1];
         }