Getting error "interface 'wl_surface' has no event 2" -- on my Wayland Linux machine

[biot023]

I'm working through the "Getting Started" guide and have only got this far:

// ./src/main.rs

use flo_draw::*;
use flo_draw::canvas::*;

fn main() {
    with_2d_graphics(|| {
        let canvas = create_canvas_window("Hello, world!");

        canvas.draw(|gc| {
            gc.new_path();

            gc.move_to(200.0, 200.0);
            gc.line_to(800.0, 200.0);
            gc.line_to(500.0, 800.0);
            gc.line_to(200.0, 200.0);

            gc.fill_color(Color::Rgba(0.0, 0.0, 0.8, 1.0));
            gc.fill();
        });
    });
}

When I try cargo run with this code, it seems to create an application (I can see a 'cog' icon when I try to alt-tab to it but it never appears) and I see this error in the console:

interface 'wl_surface' has no event 2

Can anybody advise me on how best to fix this? Thank you, Doug.