### Godot version

4.0.dev (f581f21dd61a8fb581b80d07755cdf60c95d146d)

### System information

Windows 10 - Ryzen 7 - 4070ti

### Issue description

When using the threaded resource loader, textures on materials are lost.

This is the scene being loaded in the IDE:
![image](https://github.com/godotengine/godot/assets/1945449/232dd16b-81c4-49cf-a980-3efcfa97ff79)

This is the result in runtime:
![image](https://github.com/godotengine/godot/assets/1945449/235176d3-6058-4bed-8fbe-cad14a5e0d32)


### Steps to reproduce

Use code such as the following to load a scene:
```
func _load_scene(p_scene_path):
	var new_scene : PackedScene
	if ResourceLoader.has_cached(p_scene_path):
		# Load cached scene
		new_scene = ResourceLoader.load(p_scene_path)
	else:
		# Start the loading in a thread
		ResourceLoader.load_threaded_request(p_scene_path)

		# Loop waiting for the scene to load
		while true:
			var progress := []
			var res := ResourceLoader.load_threaded_get_status(p_scene_path, progress)
			if res != ResourceLoader.THREAD_LOAD_IN_PROGRESS:
				break;

			_progress_bar = progress[0]
			await get_tree().create_timer(0.1).timeout

		# Get the loaded scene
		new_scene = ResourceLoader.load_threaded_get(p_scene_path)
	
	$CanvasLayer.visible = false
	add_child(new_scene.instantiate())
```

Now create a scene to load that has a material with a texture.

### Minimal reproduction project

[TestResourceLoader.zip](https://github.com/godotengine/godot/files/11549692/TestResourceLoader.zip)

} else if (p_name == "params_depth_draw_mode") {
		int mode = p_value;
		if (mode == 3) {
			set_transparency(TRANSPARENCY_ALPHA_DEPTH_PRE_PASS);
		}
		return true;
	} else if (p_name == "depth_enabled") {
		bool enabled = p_value;
		if (enabled) {
			set_feature(FEATURE_HEIGHT_MAPPING, true);
			set_flag(FLAG_INVERT_HEIGHTMAP, true);
		}
		return true;
	} else {
		static const Pair<const char *, const char *> remaps[] = {
			{ "flags_use_shadow_to_opacity", "shadow_to_opacity" },
			{ "flags_use_shadow_to_opacity", "shadow_to_opacity" },
			{ "flags_no_depth_test", "no_depth_test" },
			{ "flags_use_point_size", "use_point_size" },
			{ "flags_fixed_size", "fixed_Size" },
			{ "flags_albedo_tex_force_srgb", "albedo_texture_force_srgb" },
			{ "flags_do_not_receive_shadows", "disable_receive_shadows" },
			{ "flags_disable_ambient_light", "disable_ambient_light" },
			{ "params_diffuse_mode", "diffuse_mode" },
			{ "params_specular_mode", "specular_mode" },
			{ "params_blend_mode", "blend_mode" },
			{ "params_cull_mode", "cull_mode" },
			{ "params_depth_draw_mode", "params_depth_draw_mode" },
			{ "params_point_size", "point_size" },
			{ "params_billboard_mode", "billboard_mode" },