Update app.py

app.py

@@ -123,7 +123,7 @@ with gr.Blocks(css='style.css') as demo:
             wt, zs, wts = invert(x0 =x0 , prompt_src=src_prompt, num_diffusion_steps=steps, cfg_scale_src=cfg_scale_src)
             # vae decode image
             with autocast("cuda"), inference_mode():
-                x0_dec = sd_pipe.vae.decode(1 / 0.18215 * x0).sample
+                x0_dec = sd_pipe.vae.decode(1 / 0.18215 * x0.expand(1, -1, -1, -1)).sample
             if x0_dec.dim()<4:
                 x0_dec = x0_dec[None,:,:,:]
             img = image_grid(x0_dec)