### Godot version

4.1 dev2, 4.0.3

### System information

Windows 10, ryzen 5900x, radeon 6950xt (driver: 23.2.2)

### Issue description

There are two bugs:
- When I create a new node, it is created outside of the viewport. (as in first video)
- When I run the project, all the content inside the viewport dont appear. (as in second video)
I believe the second issue is related to the first.

Note: these problems are in RTL editors.

https://github.com/godotengine/godot/assets/121864036/84f0d434-0d1b-4c23-9fb0-510257e2e191


https://github.com/godotengine/godot/assets/121864036/b2bc20c7-1e2e-4d04-99e7-d66860ffced2




### Steps to reproduce

Videos explain.

### Minimal reproduction project

N/A
set_anchor(p_side, p_anchor);
}
void Control::set_anchor(Side p_side, real_t p_anchor, bool p_keep_offset, bool p_push_opposite_anchor) {
	ERR_MAIN_THREAD_GUARD;
	ERR_FAIL_INDEX((int)p_side, 4);
	Rect2 parent_rect = get_parent_anchorable_rect();
	real_t parent_range = (p_side == SIDE_LEFT || p_side == SIDE_RIGHT) ? parent_rect.size.x : parent_rect.size.y;
	real_t previous_pos = data.offset[p_side] + data.anchor[p_side] * parent_range;
	real_t previous_opposite_pos = data.offset[(p_side + 2) % 4] + data.anchor[(p_side + 2) % 4] * parent_range;
	data.anchor[p_side] = p_anchor;
	if (((p_side == SIDE_LEFT || p_side == SIDE_TOP) && data.anchor[p_side] > data.anchor[(p_side + 2) % 4]) ||
			((p_side == SIDE_RIGHT || p_side == SIDE_BOTTOM) && data.anchor[p_side] < data.anchor[(p_side + 2) % 4])) {
		if (p_push_opposite_anchor) {
			data.anchor[(p_side + 2) % 4] = data.anchor[p_side];
		} else {
			data.anchor[p_side] = data.anchor[(p_side + 2) % 4];
		}
	}
	if (!p_keep_offset) {
		data.offset[p_side] = previous_pos - data.anchor[p_side] * parent_range;
		if (p_push_opposite_anchor) {
			data.offset[(p_side + 2) % 4] = previous_opposite_pos - data.anchor[(p_side + 2) % 4] * parent_range;
		}
	}
	if (is_inside_tree()) {
		_size_changed();
	}
	queue_redraw();
}
real_t Control::get_anchor(Side p_side) const {