Suppress exceptions from invoking autocomplete

discord/app_commands/commands.py

@@ -887,11 +887,11 @@ class Command(Generic[GroupT, P, T]):
         predicates = getattr(param.autocomplete, '__discord_app_commands_checks__', [])
         if predicates:
             try:
-                if not await async_all(f(interaction) for f in predicates):
-                    if not interaction.response.is_done():
-                        await interaction.response.autocomplete([])
-                    return
+                passed = await async_all(f(interaction) for f in predicates)
             except Exception:
+                passed = False
+
+            if not passed:
                 if not interaction.response.is_done():
                     await interaction.response.autocomplete([])
                 return

discord/app_commands/tree.py

@@ -1235,7 +1235,13 @@ class CommandTree(Generic[ClientT]):
             focused = next((opt['name'] for opt in options if opt.get('focused')), None)
             if focused is None:
                 raise AppCommandError('This should not happen, but there is no focused element. This is a Discord bug.')
-            await command._invoke_autocomplete(interaction, focused, namespace)
+
+            try:
+                await command._invoke_autocomplete(interaction, focused, namespace)
+            except Exception:
+                # Suppress exception since it can't be handled anyway.
+                pass
+
             return
 
         try: