### Godot version

v4.0 rc6

### System information

Windows 10

### Issue description

When using a ViewportTexture from a SubViewport on a TextureRect, it throws errors after running the scene once and then switching scenes in the editor.
![Pasted image 20230227212626](https://user-images.githubusercontent.com/44676282/221680047-984fa03e-33d1-4856-9a7f-1700b28423cf.png)


### Steps to reproduce

Run the canvas-scene once.
Switch to another scene in the editor.
Switch back to the canvas-scene

### Minimal reproduction project

[ViewportTextureError.zip](https://github.com/godotengine/godot/files/10844099/ViewportTextureError.zip)

ERR_MAIN_THREAD_GUARD;
	ERR_FAIL_UNSIGNED_INDEX(p_layer, 32);
	if (p_enable) {
		set_canvas_cull_mask(canvas_cull_mask | (1 << p_layer));
	} else {
		set_canvas_cull_mask(canvas_cull_mask & (~(1 << p_layer)));
	}
}
bool Viewport::get_canvas_cull_mask_bit(uint32_t p_layer) const {
	ERR_READ_THREAD_GUARD_V(false);
	ERR_FAIL_UNSIGNED_INDEX_V(p_layer, 32, false);
	return (canvas_cull_mask & (1 << p_layer));
}
#ifndef _3D_DISABLED
AudioListener3D *Viewport::get_audio_listener_3d() const {
	ERR_READ_THREAD_GUARD_V(nullptr);
	return audio_listener_3d;
}
void Viewport::set_as_audio_listener_3d(bool p_enable) {
	ERR_MAIN_THREAD_GUARD;
	if (p_enable == is_audio_listener_3d_enabled) {
		return;
	}
	is_audio_listener_3d_enabled = p_enable;
	_update_audio_listener_3d();
}
bool Viewport::is_audio_listener_3d() const {