Old sketches don't render on the sketches listing page

[nikochiko]

Describe the bug
The very old sketches don't render on the sketches listing page. e.g. https://mon.school/sketches?page=36 (which as of now is the last page)

To Reproduce
Steps to reproduce the behavior:

1. Go to the last page of https://mon.school/sketches (if you set ?page=100 or some large number, the pagination will link to the 5 last pages)
2. Click on the last page
3. The sketches image area is blank
4. But the sketches can be rendered after hitting "run" from the sketch details page

Expected behavior
The sketches should ideally render. Or maybe show some text that the image isn't rendered due to difference in versions, etc.

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS] macOS
• Browser [e.g. chrome, safari] chrome
• Version [e.g. 22] 96

Additional context
Add any other context about the problem here.