Try reducing concurrent runs.

src/fighter/baked_animation.rs

@@ -3,7 +3,6 @@
 use std::{
     collections::{HashMap, HashSet},
     io,
-    path::Path,
 };
 
 use bevy::{
@@ -518,7 +517,6 @@ struct FighterBakeDeclaration {
 #[derive(Asset, TypePath)]
 struct FighterBakeSource {
     model_bytes: Vec<u8>,
-    buffers: Vec<Vec<u8>>,
     animations: HashMap<AnimKind, String>,
 }
 
@@ -552,31 +550,8 @@ impl AssetLoader for FighterBakeSourceLoader {
             .read_asset_bytes(&manifest.model_path)
             .await
             .map_err(|error| io::Error::other(error.to_string()))?;
-
-        let gltf = gltf::Gltf::from_slice(&model_bytes)
-            .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-        let mut buffers = Vec::with_capacity(gltf.buffers().len());
-        for buffer in gltf.buffers() {
-            let bytes = match buffer.source() {
-                gltf::buffer::Source::Uri(uri) => load_context
-                    .read_asset_bytes(AssetPath::from_path_buf(
-                        Path::new(&manifest.model_path)
-                            .parent()
-                            .unwrap_or_else(|| Path::new(""))
-                            .join(uri),
-                    ))
-                    .await
-                    .map_err(|error| io::Error::other(error.to_string()))?,
-                gltf::buffer::Source::Bin => gltf.blob.clone().ok_or_else(|| {
-                    io::Error::new(io::ErrorKind::InvalidData, "missing glTF binary blob")
-                })?,
-            };
-            buffers.push(bytes);
-        }
-
         Ok(FighterBakeSource {
             model_bytes,
-            buffers,
             animations: manifest.animations,
         })
     }
@@ -625,7 +600,7 @@ impl AssetTransformer for FighterBakeTransformer {
         source: TransformedAsset<Self::AssetInput>,
         _: &'a Self::Settings,
     ) -> Result<TransformedAsset<Self::AssetOutput>, Self::Error> {
-        let baked = bake_gltf(&source.model_bytes, &source.buffers, &source.animations)?;
+        let baked = bake_gltf(&source.model_bytes, &source.animations)?;
         Ok(source.replace_asset(baked))
     }
 }
@@ -681,36 +656,11 @@ impl Plugin for BakedAnimationPlugin {
 
 fn bake_gltf(
     bytes: &[u8],
-    buffer_bytes: &[Vec<u8>],
     animations: &HashMap<AnimKind, String>,
 ) -> io::Result<BakedFighterAnimations> {
-    let gltf = gltf::Gltf::from_slice(bytes)
+    let (document, buffers, _) = gltf::import_slice(bytes)
         .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-    let buffers = gltf
-        .buffers()
-        .zip(buffer_bytes)
-        .map(|(buffer, bytes)| {
-            if bytes.len() < buffer.length() {
-                return Err(io::Error::new(
-                    io::ErrorKind::InvalidData,
-                    format!(
-                        "glTF buffer {} is too short: expected {}, got {}",
-                        buffer.index(),
-                        buffer.length(),
-                        bytes.len()
-                    ),
-                ));
-            }
-            Ok(gltf::buffer::Data(bytes.clone()))
-        })
-        .collect::<io::Result<Vec<_>>>()?;
-    if buffers.len() != gltf.buffers().len() {
-        return Err(io::Error::new(
-            io::ErrorKind::InvalidData,
-            "glTF buffer data is incomplete",
-        ));
-    }
-    bake_gltf_document(gltf.document, buffers, animations)
+    bake_gltf_document(document, buffers, animations)
 }
 
 fn bake_gltf_document(