fix example error by cache

app.py

@@ -20,6 +20,8 @@ else:
 
 MAX_SEED = numpy.iinfo(numpy.int32).max
 
+CACHE_EXAMPLES = torch.cuda.is_available() and os.getenv("CACHE_EXAMPLES", "0") == "1"
+
 # Global dictionary to store pipelines
 PIPELINES = {}
 
@@ -1236,6 +1238,7 @@ with gr.Blocks(theme=theme, css=css) as demo:
 
             gr.Examples(
                 examples=examples_arena,
+                fn=generate_arena_images,
                 inputs=[
                     prompt,
                     negative_prompt,
@@ -1280,7 +1283,7 @@ with gr.Blocks(theme=theme, css=css) as demo:
                     decoder_guidance_scale_d,
                 ],
                 outputs=[result_1, result_2, result_3, result_4],
-                fn=generate_arena_images,
+                cache_examples=CACHE_EXAMPLES
             )
 
             gr.on(
@@ -1531,6 +1534,7 @@ with gr.Blocks(theme=theme, css=css) as demo:
 
             gr.Examples(
                 examples=examples_individual,
+                fn=generate_individual_image,
                 inputs=[
                     prompt,
                     model_choice,
@@ -1547,7 +1551,7 @@ with gr.Blocks(theme=theme, css=css) as demo:
                     decoder_guidance_scale,
                 ],
                 outputs=[result],
-                fn=generate_individual_image,
+                cache_examples=CACHE_EXAMPLES
             )
 
             gr.on(