Ubuntu 24.04 weasyprint not working.

[HonourableTyr]

While I am running Ubuntu 24.04.2. While it does not strictly conform to the requirement of Debian, it is Debian based and Debian-like.

I cannot get weasyprint to output a PDF copy within the report zip-file as it did on Ubuntu 22.04 or on my Raspberry Pi with PiOS. No PDF is generated when saving the report under Ubuntu 24.04.

Another user reported this on a closed issue (plus de report.pdf dans la sauvegarde #41) but their solution is not specific enough to assist in resolving this issue.

My understanding is that SpyGuard uses a virtual environment for the Python dependencies but I wouldn't know where to start with deconflicting between those and any installed outside of that virtual environment which may be causing problems.

I cannot easily fall back to using Debian as my hardware requires kernel 6.14 or newer (Debian have only just started using 6.12), and we're currently working with Ubuntu systems across the board.

Any assistance would be appreciated. Also suggestions as to how to spot/debug what is causing the failure to produce the PDF.