### Godot version

4.0 beta 17

### System information

Windows 10

### Issue description

MultiMeshInstance2D is not displaying anything in renderer `gl_compatibility` (GLES3)
Works as expected with `forward_plus` 

### Steps to reproduce

Create a project with renderer `gl_compatibility`
Add a MultiMeshInstance2D


### Minimal reproduction project


[Multimeshinstance2d.zip](https://github.com/godotengine/godot/files/10578720/Multimeshinstance2d.zip)

singleton = nullptr;
	GLES3::MaterialStorage *material_storage = GLES3::MaterialStorage::get_singleton();
	material_storage->shaders.canvas_shader.version_free(data.canvas_shader_default_version);
	shadow_render.shader.version_free(shadow_render.shader_version);
	material_storage->material_free(default_canvas_group_material);
	material_storage->shader_free(default_canvas_group_shader);
	material_storage->material_free(default_clip_children_material);
	material_storage->shader_free(default_clip_children_shader);
	singleton = nullptr;
	glDeleteBuffers(1, &data.canvas_quad_vertices);
	glDeleteVertexArrays(1, &data.canvas_quad_array);
	glDeleteBuffers(1, &data.canvas_quad_vertices);
	glDeleteVertexArrays(1, &data.canvas_quad_array);
	GLES3::TextureStorage::get_singleton()->canvas_texture_free(default_canvas_texture);
	memdelete_arr(state.instance_data_array);
	memdelete_arr(state.light_uniforms);
	if (state.shadow_fb != 0) {
		glDeleteFramebuffers(1, &state.shadow_fb);
		glDeleteTextures(1, &state.shadow_texture);
		glDeleteRenderbuffers(1, &state.shadow_depth_buffer);
		state.shadow_fb = 0;
		state.shadow_texture = 0;
		state.shadow_depth_buffer = 0;
	}
}
#endif