Optional tag will not show up anymore

🐛 Bug
1

Before the error happened, I was…
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Error message (don't change this) 
Anki 25.07.5 (7172b2d2) (ao)
Python 3.13.5 Qt 6.9.1 PyQt 6.9.1
Platform: Windows-11-10.0.26200-SP0

Traceback (most recent call last):

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\aqt\taskman.py", line 152, in raise_exception
    raise exception

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\aqt\taskman.py", line 148, in _on_closures_pending
    closure()
    ~~~~~~~^^

  File "C:\Users\plnov\AppData\Roaming\Anki2\addons21\1322529746\gui\browser\browser.py", line 701, in on_done
    future.result()
    ~~~~~~~~~~~~~^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\python\cpython-3.13.5-windows-x86_64-none\Lib\concurrent\futures\_base.py", line 449, in result
    return self.__get_result()
           ~~~~~~~~~~~~~~~~~^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\python\cpython-3.13.5-windows-x86_64-none\Lib\concurrent\futures\_base.py", line 401, in __get_result
    raise self._exception

  File "C:\Users\plnov\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\utils.py", line 36, in wrapper
    return func(*args, **kwargs)

  File "C:\Users\plnov\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\ankihub_sync.py", line 183, in update_decks_and_media
    run_update(
    ~~~~~~~~~~^
        raise_if_full_sync_required=True,
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        do_full_upload=False,
        ^^^^^^^^^^^^^^^^^^^^^
        start_media_sync=start_media_sync,
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^

  File "C:\Users\plnov\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\ankihub_sync.py", line 147, in run_update
    ).failure(on_failure).with_progress().run_in_background()
                                          ~~~~~~~~~~~~~~~~~^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\aqt\operations\__init__.py", line 263, in run_in_background
    self._run(mw, wrapped_op, wrapped_done)
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\aqt\operations\__init__.py", line 281, in _run
    mw.taskman.with_progress(op, on_done, label=label, parent=self._parent)
    ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\aqt\taskman.py", line 113, in with_progress
    self.run_in_background(task, wrapped_done, uses_collection=uses_collection)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\aqt\taskman.py", line 74, in run_in_background
    traceback.print_stack()
    ~~~~~~~~~~~~~~~~~~~~~^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\python\cpython-3.13.5-windows-x86_64-none\Lib\traceback.py", line 239, in print_stack
    print_list(extract_stack(f, limit=limit), file=file)
    ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\python\cpython-3.13.5-windows-x86_64-none\Lib\traceback.py", line 31, in print_list
    print(item, file=file, end="")
    ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\colorama\ansitowin32.py", line 47, in write
    self.__convertor.write(text)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\colorama\ansitowin32.py", line 177, in write
    self.write_and_convert(text)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\colorama\ansitowin32.py", line 205, in write_and_convert
    self.write_plain_text(text, cursor, len(text))
    ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^

  File "C:\Users\plnov\AppData\Local\AnkiProgramFiles\.venv\Lib\site-packages\colorama\ansitowin32.py", line 211, in write_plain_text
    self.wrapped.flush()
    ^^^^^^^^^^^^^^^^^^

AttributeError: 'ErrorHandler' object has no attribute 'flush'

Sentry link (for developers)

2

Hello,

Please ensure you are on the latest version of Anki. You can download it here: https://apps.ankiweb.net/. After downloading, simply run the installer to update your application.

Please also update your AnkiHub add-on:

  1. On your Anki main screen, go to Tools > Add-ons > Check for Updates.
  2. After the update is complete, please restart Anki.

Let us know if you continue to experience this issue