Update app.py

app.py

@@ -145,8 +145,8 @@ def linscale(linear):
 
 def loadf(f):
     if f != None:
-        f = f.sort()
-    return f
+        f.sort()
+    return f, f
 
 
 title="""
@@ -179,7 +179,7 @@ with gr.Blocks() as demo:
             with gr.Column():
                 files_input = gr.File(file_count="multiple", file_types=['image'])
                 gallery_input = gr.Gallery(label="Slides", preview=True, columns=8192, interactive=False)
-                files_input.change(fn=loadf, inputs=[files_input], outputs=[gallery_input])
+                files_input.change(fn=loadf, inputs=[files_input], outputs=[files_input, gallery_input])
                 with gr.Row():
                     interpolation_slider = gr.Slider(minimum=1, maximum=5, step=1, value=1, label="Interpolation Steps: ")
                     interpolation = gr.Number(value=1, show_label=False, interactive=False)