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Error message (don't change this) Anki 26.08.1 (39e4b0b4) (ao) Python 3.13.13 Qt 6.11.0 PyQt 6.11.0 Platform: Windows-11-10.0.26200-SP0 File "threading.py", line 1015, in _bootstrap ===Add-ons (active)=== (add-on provided name [Add-on folder, installed at, version, is config changed]) AnkiHub ['1322529746', 2026-08-27T10:23, 'None', ''] Contanki - Controller Support for Anki beta ['1898790263', 2024-02-29T21:22, 'v1.0.2', ''] Review Heatmap ['1771074083', 2022-06-29T21:43, 'None', ''] ===IDs of active AnkiWeb add-ons=== 1322529746 1771074083 1898790263 ===Add-ons (inactive)=== (add-on provided name [Add-on folder, installed at, version, is config changed])
Anki 26.08.1 (39e4b0b4) (ao)
Python 3.13.13 Qt 6.11.0 PyQt 6.11.0
Platform: Windows-11-10.0.26200-SP0

Traceback (most recent call last):

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\taskman.py", line 152, in raise_exception

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\taskman.py", line 148, in _on_closures_pending

  File "C:\Users\Steven\AppData\Roaming\Anki2\addons21\1322529746\gui\browser\browser.py", line 719, in on_done
    future.result()
    ~~~~~~~~~~~~~^^

  File "concurrent\futures\_base.py", line 449, in result

  File "concurrent\futures\_base.py", line 401, in __get_result

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

  File "C:\Users\Steven\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\ankihub_sync.py", line 246, 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\Steven\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\ankihub_sync.py", line 210, in run_update
    ).failure(on_failure).with_progress().run_in_background()
                                          ~~~~~~~~~~~~~~~~~^^

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\operations\__init__.py", line 263, in run_in_background

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\operations\__init__.py", line 281, in _run

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\taskman.py", line 113, in with_progress

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\taskman.py", line 74, in run_in_background

  File "traceback.py", line 239, in print_stack

  File "traceback.py", line 31, in print_list

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\colorama\ansitowin32.py", line 47, in write

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\colorama\ansitowin32.py", line 177, in write

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\colorama\ansitowin32.py", line 205, in write_and_convert

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\colorama\ansitowin32.py", line 210, in write_plain_text

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\colorama\ansitowin32.py", line 47, in write

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\colorama\ansitowin32.py", line 177, in write

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\colorama\ansitowin32.py", line 205, in write_and_convert

  File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\colorama\ansitowin32.py", line 211, in write_plain_text

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

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You can work around this for now by syncing after resetting the tag group.