boxes aren't working in news

https://training.galaxyproject.org/training-material/news/2021/05/25/abbreviations-tag.html

Working: https://training.galaxyproject.org/archive/2023-12-01/news/2021/05/25/abbreviations-tag.html
Not: https://training.galaxyproject.org/archive/2024-01-01/news/2021/05/25/abbreviations-tag.html

Compare the working and failing archive URLs for the linked news page, starting with the page's box markup and the rendering path used by the training material. Identify why the boxes differ between the two archive dates; done means the boxes render correctly in the affected news page without breaking the working version.

Written by the indexing model from the issue text.