Anki 26.05 is crashing when display wakes up

Anki Help
1

Anki 26.05 crashes when display wakes up on windows11-lenovo ideapadgaming3 (ryzen 5 4600H, 16GB memory)

Hi,

I updated to version 26.05 yesterday.

Since then when ever the system wakes up from having the display turned off (i.e 'turn off display after 2 mins but not- shutdown/sleep), I find that firefox, anki and windows explorer has crashed. If it hasn’t crashed, then the system is extremely slow. One such time, I had anki open with browser window and add window open, along with a new-tab open on firefox. Anki was using 8000MB+ of my memory.

(I keep Anki open on the laptop almost always, and sometimes take long breaks before returning to my desk and actively using it.)

The last crash showed a copy-debug information, but laptop was slow and although I clicked copy nothing was present in the clipboard. Does anki locally store the error logs after a crash?

Attempted fixes: updated display drivers (AMD, NVIDIA); checked the system paging file allocation - it is set to automatically manage memory, ran sfc /scannow. (Last crash was after this).

edit1: My Anki preferences has OpenGL set as video driver in the anki preferences since the default (direct3D) sometimes lags, and shows me the image from the previous card.

Images:

This was how it looked when the screen woke up.

ankiscreen
ankiscreen1920×1440 278 KB

Another crash.

crashreport
crashreport1920×1440 393 KB

Task manager showing unusually high RAM usage.

taskmanager
taskmanager1920×1440 518 KB

2

What are your steps to reproduce? E.g. does it only happen if the add note dialog is open? Or also if only the main window is open?

Another crash but not from anki (it says firefox). Maybe the issue is your hardware failing? Or something else is going on.

Does your issue only happen if anki is open at all? If other apps are crashing too (like firefox) anki is unlikely going to be the culprit.

3

All the 3-4 times it happened was when I left Anki open, screen went dim and I returned after 20-30 minutes. So that should be it?

(Turn screen off 2 mins, never -shutdown/sleep/hibernate, + browser window + add window + firefox? for 30mins+)

Usually I have a browse window open, add window open and a new tab on firefox. I’ve been using it this way for a couple of months now. Hence, I don’t think it’s my hardware?

The screenshot shows firefox crashed yes, but I definitely had Anki running when I left it. (No other app has crashed in isolation, when Anki wasn’t running.)

The taskmanager showing the high ram usage makes me think it’s something about Anki? The laptop was not responsive enough to take a screenshot, which is why I have taken photos on my phone.

edit1: Firefox has not crashed while being used otherwise. Except for one time today when everything slowed down and Anki’s ram usage spiked above 8000MB. That was with Anki open + add + browser. After killing the app through taskmanager and restarting, Anki works fine each time.

Another trouble I kept running into was, sometimes the cursor gets stuck on empty lines (between lines of content; in the same text box) when I try to move it with my arrow keys alone. Reproducing it was hard, but it happens randomly when I try to edit cards I’m reviewing. Pressing the down key on an empty line doesn’t move me to the next line. After a couple of seconds/attempts it works though.

4

You should go through the Troubleshooting Checklist – Troubleshooting - Anki Manual – especially #2 safe mode, and #6 video drivers. But try everything, even the things you don’t think are relevant.

5

Hi, Danika. Thanks for the response!
I have tried most of the troubleshooting steps. Anki woke-up fine with the display today morning, on both my attempts to replicate the crashes in safe mode, with video-driver set to software. Since it happens more-or-less randomly, I guess I’ll have to use it like this for a while and see. Will comment if it happens again.

  1. Restarting Anki: In the earlier crashes, post-killing the app via taskmanager and restarting it would work fine.

  2. Check add-ons: I guess I have to use it a couple of days without addons to see if it happens again. (debug info at the bottom)

  3. Checking database: I did that after installing the new version, did it again now. Showed me this response:

    databasecheck
    databasecheck564×570 43.7 KB

  4. Restart my computer: Yes, I did that after updating my nvidia drivers for the dedicated GPU (GTX-1650mobile), after updating my AMD CPU drivers, and after each crash. Subsequent crashes continued to occur in similar conditions each time (waking the display up), but no problems using Anki at startup.

  5. Change video driver: I had it on OpenGL until now, because Direct3D lags a bit (often shows me the render from the previous card). Now I have it set to ‘software’.

  6. Reset window sizes: Did it now.

Debug info:

Anki 26.05 (e64c6b1a) (ao)
Python 3.13.13 Qt 6.11.0 PyQt 6.11.0
Platform: Windows-11-10.0.26200-SP0

===Add-ons (active)===
(add-on provided name [Add-on folder, installed at, version, is config changed])
Add Hyperlink ['318752047', 2023-06-18T15:39, 'None', '']
Additional Card Fields Fork for 21 ['744725736', 2022-10-23T14:10, 'None', mod]
Advanced Browser ['874215009', 2024-10-27T18:20, 'None', mod]
Anki Simulator ['817108664', 2023-11-06T21:26, 'None', '']
Batch Editing ['291119185', 2023-10-26T04:38, 'None', '']
Browser Resizer ['1435775540', 2025-01-28T15:03, 'None', mod]
Browser TableEditor side-by-side horizontal split ['831846358', 2022-01-26T02:11, 'None', mod]
Clickable Tags v20 ['1739176371', 2022-01-31T02:58, 'None', '']
Contanki - Controller Support for Anki beta ['1898790263', 2024-03-01T05:22, 'v1.0.2', '']
Custom Background Image and Gear Icon ['1210908941', 2025-12-17T17:00, 'None', mod]
Customize Keyboard Shortcuts ['24411424', 2023-11-01T13:17, 'None', mod]
Edit Field During Review Cloze ['385888438', 2025-08-04T18:13, '6.23', mod]
Export Single Tag For Sharing ['960563361', 2025-01-30T00:21, 'None', '']
Extended Tag AddEdit Dialog ['1135507717', 2023-11-11T20:58, 'None', mod]
FSRS Helper Postpone  Advance  Load Balance  Easy Days  Disperse Siblings ['759844606', 2026-05-14T10:49, 'None', mod]
Fastbar- with nightmode support ['46611790', 2025-01-28T02:52, 'None', '']
Google Translate ['1536291224', 2025-02-13T01:57, 'None', '']
High Yield Tags ['1918380616', 2023-01-10T23:14, 'None', mod]
Hint Hotkeys ['1844908621', 2023-04-14T18:13, 'None', '']
Image Occlusion Enhanced ['1374772155', 2022-04-09T11:15, 'None', '']
More Decks Stats and Time Left ['1556734708', 2025-06-24T00:44, 'None', mod]
More Overview Stats 21 ['738807903', 2025-02-18T01:14, 'None', mod]
PassFail 2 Remove the Easy and Hard buttons ['876946123', 2024-06-04T05:56, 'None', '']
Progress Bar ['2091361802', 2019-03-03T06:27, 'None', '']
Quick Colour Changing ['2491935955', 2023-10-19T07:15, 'None', mod]
Reset Ease ['947935257', 2023-11-12T05:22, 'None', '']
Review Heatmap ['1771074083', 2022-06-30T05:43, 'None', '']
Symbols As You Type ['2040501954', 2026-01-25T20:25, 'None', '']
Symbols ['1461102936', 2026-05-19T18:25, 'None', mod]
The KING of Button Add-ons ['374005964', 2025-07-28T15:25, 'None', '']
Web Browser - Search terms Import texts and images automatically ['864545277', 2025-04-30T23:34, 'None', mod]
Wrapper meta-addon ['396502676', 2025-07-09T19:27, 'None', '']
add-on dialog searchfilter bar ['561945101', 2023-10-18T20:22, 'None', '']
rebuildempty some or all filtered decks ['104518886', 2023-05-17T02:33, 'None', '']

===IDs of active AnkiWeb add-ons===
104518886 1135507717 1210908941 1374772155 1435775540 1461102936 1536291224 1556734708 1739176371 1771074083 1844908621 1898790263 1918380616 2040501954 2091361802 24411424 2491935955 291119185 318752047 374005964 385888438 396502676 46611790 561945101 738807903 744725736 759844606 817108664 831846358 864545277 874215009 876946123 947935257 960563361

===Add-ons (inactive)===
(add-on provided name [Add-on folder, installed at, version, is config changed])
Advanced Card Styles ['1625103157', 2021-12-28T21:49, 'None', '']
BetterSearch ['1052724801', 2026-03-03T16:58, 'None', mod]
Closet For Anki ['272311064', 2022-08-12T12:27, 'None', '']
Extended Card Stats During Review ['1008566916', 2024-02-26T23:07, 'None', '']
Free Weekend - or Any Other Day ['742185195', 2020-04-10T15:57, 'None', mod]
Highlight Search Results in the Browser ['225180905', 2023-10-21T23:17, 'None', '']
Image Editor ['307397307', 2022-09-08T08:09, 'None', mod]
Load Balanced Scheduler ['208879074', 2019-07-24T06:37, 'None', '']
Mini Format Pack ['295889520', 2023-11-02T22:00, 'None', '']
Pop-up Dictionary beta ['153625306', 2019-03-23T21:32, 'None', '']
Puppy Reinforcement ['1722658993', 2023-11-16T16:59, 'None', '']
Searching PDF Reading  Note-Taking in Add Dialog ['1781298089', 2022-06-29T10:14, 'None', '']
Special Fields ['1102281552', 2025-02-25T17:07, 'None', mod]
Speed Focus Mode auto-alert auto-reveal auto-answer ['1046608507', 2022-12-16T15:24, 'None', mod]
Straight Reward ['957961234', 2023-11-01T18:11, 'None', '']
Syllabus - Anki Statistics and Export by Tag and Deck ['668156440', 2026-05-19T23:04, 'None', mod]
6

This happened again, I was able to replicate this whenever I press the down-arrow key from after the last character (in the line above) before the empty line to get into it. The cursor gets stuck everytime, in multiple cards. The arrow keys are working fine otherwise.

7
  • Was this while you were running in safe mode, with no add-ons?
  • Have you tried the other video drivers (restarting after each change)?
  • NVIDIA cards/drivers are notorious for changing in ways that cause issues with Anki – Search results for 'nvidia order:latest' - Anki Forums . If updating that driver didn’t help, you might need to try rolling it back.
  • Try running Anki from a terminal window for a while, so you can catch the errors that are being logged in the background. Startup Issues - Anki Manual
8

Just to make it clear, the error I’m talking about is ‘getting stuck on an empty line’.

(Anki did not crash on waking the display today. I had used it half-through the day in safe mode and half without it sparingly using addons.)

Regarding the ‘cursor-stuck’ error:
Yes it happens even on safe mode, with all addons disabled.
Terminal window didn’t show any change when the cursor got stuck.

(‘trying to obtain clipboard’ - was when my screenshots)

image
image941×598 23 KB

9

But what does it show if you observe the crash?

10

This terminal output shows that add-ons were not disabled. To run in safe mode from the terminal window, press Shift before you press enter on the command, and hold it down until you see the confirmation message.

Always better to give this to us as text (preferably in a code block, like you used above for your debug info), rather than a screenshot.

I’m going to encourage you to stop doing that. Since you’re having crashes after leaving Anki open when your display sleeps, shutting it down seems like the best way to avoid the crashes.

It’s also meaningful that Anki isn’t the only app crashing. Your system resources seem overtaxed, which is why we were recommending safe mode to eliminate memory leaks in any of your add-ons (or a combination of your add-ons). Your video driver seems to be implicated as well.

If trying to get this working is interfering with your studies, you can also stop trying to reproduce this and roll-back to a version where you weren’t having this problem. Most of the time, a new version of Anki comes with a new version of Qt, the web-engine Anki uses. It’s possible that your system can’t handle the Qt update.

11

My bad, I meant to say it didn’t crash yesterday. I used half the day in safe mode, and the remaining half using only 2-3 addons. And multiple periods of leaving the display off, Anki didn’t crash.

Running anki-in-safemode from terminal, I got into to the browser and the cursor did get stuck in between lines.

C:\Program Files\Anki>anki-console.bat
Starting Anki 26.05...
2026-06-23 07:11:34,352:INFO:aqt.mediasrv: Serving on http://127.0.0.1:56816
Starting main loop...
Qt warning: GPUInfo not initialized on GpuInfoUpdate
JS warning /_anki/js/editor.js:439 No version information available for component [tex]/noerrors
JS warning /_anki/js/editor.js:439 No version information available for component [tex]/mathtools

Thank you for responses! I guess I will stop leaving anki on and roll it back if it crashes again.