Anki not Rendering Flashcards (Blank) on Desktop and Ankiweb

Anki Help
1

Since updating to Anki 25.07.3 (and present in 25.05), flashcards are not rendering on the screen when attempting to study any deck. The screen remains blank where the flashcard content should be displayed. This issue occurs consistently across all decks and is also reproducible on AnkiWeb when attempting to study.

Steps to Reproduce:

  1. Launch Anki (either from terminal or desktop shortcut).
  2. Select any deck from the main screen.
  3. Click the “Study Now” button.

Expected Behavior: Flashcard content should be displayed on the screen for review.

Observed Behavior: The flashcard area remains blank; no content is rendered.

System Information:

  • Anki Version: 25.07.3 (65b5aefd)
  • Python Version: 3.13.5
  • Qt Version: 6.9.1
  • PyQt Version: 6.9.1
  • Platform: Linux-6.8.0-64-generic-x86_64-with-glibc2.39
  • Operating System: Ubuntu
  • Display Server: Wayland (initially), also tested with Xorg (issue persists)

Troubleshooting Performed:

  • Attempted studying various decks – issue affects all of them.
  • Verified issue persistence on AnkiWeb.
  • Switched display server from Wayland to Xorg – problem remained.
  • Restarted the Anki application multiple times after each troubleshooting step.
  • Confirmed the issue was also present in Anki version 25.05.

This seems to be a persistent rendering issue. Could this be related to a system-level configuration or a graphics driver problem on my computer? What additional logs or diagnostic information would be helpful for further investigation?

2

Additionally, the problem persist when viewing a flashcard in the preview window. But is able to render the flashcard when in the Browse tab.

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image1119×1711 94.4 KB

3

This appears unrelated to the upgrade. Open the editor, click on Cards, and then change {{cloze:Front}} and {{cloze:Back}} to remove the cloze: part.

1 Like
4

This fixes the issue!

Edit:
When I was experimenting with cloze deletions on one card, it seems I updated the template itself, which then applied the cloze format to all cards. Reverting the template to use {{Front}} and {{Back}} fixed the issue completely! Thanks @dae

1 Like
5

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