Scene not loading when entity has GlobalTransform or Children

[ShinySapphic]

Bevy version

0.9.0

What you did

I attempted to save and load a scene

fn load_scene(
    mut commands: Commands,
    assets: Res<AssetServer>,
) {
    commands.spawn(DynamicSceneBundle {
        scene: assets.load("scenes/test.scn.ron"),
        ..default()
    });
}

fn save_scene(world: &mut World) {
    for entity in world
        .query_filtered::<Entity, With<Camera>>()
        .iter(world)
        .collect::<HashSet<_>>()
    {
        world.despawn(entity);
    }

    let type_registry = world.resource::<AppTypeRegistry>();
    let scene = DynamicScene::from_world(world, type_registry);

    let serialized = scene
        .serialize_ron(type_registry)
        .expect("Failed to serialize the world");

    #[cfg(not(target_arch = "wasm32"))]
    IoTaskPool::get()
        .spawn(async move {
            fs::write("assets/scenes/test.scn.ron", serialized.as_bytes())
                .expect("Failed to write to file");
        })
        .detach();
}

What went wrong

Scene does not load and logs a message to the console.

Additional information

Logs

When an entity is saved with a GlobalTransform component

WARN bevy_asset::asset_server: encountered an error while loading an asset: Expected float

When loading a scene with an entity that has children.

WARN bevy_asset::asset_server: encountered an error while loading an asset: no registration found for type `smallvec::SmallVec<[bevy_ecs::entity::Entity; 8]>`

Removing both components from the ron file allows the scene to load. Obviously doing so might cause weird behaviors since entities don't have any of these components anymore.

[kerkmann]

Can confirm, have the same problem. ^^"

Edit: Seems like that the problem is from parsing the Ron file (inside the library), maybe because it's a tuple? ^^"

[MrGVSV]

Closing as this should be resolved by #6578 and #6580, which should both be out now in v0.9.1 which was recently released.

If you notice it's still broken, feel free to reopen!