After updating to 26.05, I keep having problems getting the FSRS Desired Retention Simulator to work for some decks. Whenever I try to simulate, it shows `Error: 404: Invalid path: _anki/latestProgress. The only decks affected are ones for which I have the Ignore cards reviewed before filled (set to 01/05/2026). The following is the debug info:
Anki 26.05 (e64c6b1a)
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 148, in on_closures_pending
File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\taskman.py", line 88, in
File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\taskman.py", line 111, in wrapped_done
File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\operations_init.py", line 259, in wrapped_done
File "concurrent\futures_base.py", line 449, in result
File "concurrent\futures_base.py", line 401, in _get_result
File "concurrent\futures\thread.py", line 59, in run
File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\operations_init.py", line 243, in wrapped_op
File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\aqt\main.py", line 1596, in backup
File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\anki\collection.py", line 343, in create_backup
File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\anki_backend_generated.py", line 172, in create_backup
File "D:\a\anki\anki\out\installer\build\anki\windows\app\src\app_packages\anki_backend.py", line 162, in _run_command
pyo3_runtime.PanicException: called Result::unwrap() on an Err value: PoisonError { .. }