# My anki crashed suddenly. I have the most recent version. Qt6. The error message will be below . Please advise so that this does'nt happen again. Thanks

**URL:** <https://forums.ankiweb.net/t/my-anki-crashed-suddenly-i-have-the-most-recent-version-qt6-the-error-message-will-be-below-please-advise-so-that-this-doesnt-happen-again-thanks/33767>\
**Category:** Help\
**Created:** [August 30, 2023, 7:43am UTC](https://forums.ankiweb.net/t/my-anki-crashed-suddenly-i-have-the-most-recent-version-qt6-the-error-message-will-be-below-please-advise-so-that-this-doesnt-happen-again-thanks/33767 "2023-08-30T07:43:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![AndrewN](https://avatars.discourse-cdn.com/v4/letter/a/9e8a1a/32.png) [@AndrewN](https://forums.ankiweb.net/u/AndrewN)\
**Post date:** [August 30, 2023, 7:43am UTC](https://forums.ankiweb.net/t/my-anki-crashed-suddenly-i-have-the-most-recent-version-qt6-the-error-message-will-be-below-please-advise-so-that-this-doesnt-happen-again-thanks/33767/1 "2023-08-30T07:43:41Z")

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A fatal error occurred, and Anki must close. Please report this message on the forums.  
Anki 2.1.65 (aa9a734f) Python 3.9.15 Qt 6.4.3 PyQt 6.4.0  
Platform: Windows-10-10.0.22621  
Flags: frz=True ao=True sv=?  
Add-ons, last update check: 2023-08-29 10:53:47

Caught exception:  
Traceback (most recent call last):  
File “aqt.taskman”, line 122, in \_on\_closures\_pending  
File “aqt.taskman”, line 71, in   
File “aqt.taskman”, line 90, in wrapped\_done  
File “aqt.operations”, line 120, in wrapped\_done  
File “concurrent.futures.\_base”, line 439, in result  
File “concurrent.futures.\_base”, line 391, in \_\_get\_result  
File “concurrent.futures.thread”, line 58, in run  
File “aqt.operations”, line 105, in wrapped\_op  
File “aqt.operations.note”, line 22, in   
File “anki.collection”, line 566, in add\_note  
File “anki.\_backend\_generated”, line 609, in add\_note  
File “anki.\_backend”, line 150, in \_run\_command  
pyo3\_runtime.PanicException: assertion failed: `(left == right)`  
left: `1693380989695`,  
right: `0`

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<div class="post-metadata">

**Author:** ![ferophila](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/ferophila/32/10566_2.png) [@ferophila](https://forums.ankiweb.net/u/ferophila)\
**Post date:** [August 30, 2023, 8:17am UTC](https://forums.ankiweb.net/t/my-anki-crashed-suddenly-i-have-the-most-recent-version-qt6-the-error-message-will-be-below-please-advise-so-that-this-doesnt-happen-again-thanks/33767/2 "2023-08-30T08:17:52Z")

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Please update to the latest version (2.1.66) and see if the issue persists.

[https://faqs.ankiweb.net/when-problems-occur.html](https://faqs.ankiweb.net/when-problems-occur.html)

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**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/anki2/original/1X/8f1279ababc5879d54e4838989f606cfe55af8c7.jpeg) [@system](https://forums.ankiweb.net/u/system)\
**Post date:** [September 29, 2023, 8:18am UTC](https://forums.ankiweb.net/t/my-anki-crashed-suddenly-i-have-the-most-recent-version-qt6-the-error-message-will-be-below-please-advise-so-that-this-doesnt-happen-again-thanks/33767/3 "2023-09-29T08:18:03Z")

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