I kept getting a divide by zero error (Signal 8) with wkhtmltopdf under Rocky Linux

RPM in use: wkhtmltox-0.12.6.1-2.almalinux9.x86_64.rpm (credit to: https://forums.rockylinux.org/t/need-to-install-wkhtmltopdf-for-rocky-linux-9-how/6758/2)

This was running under Ibexa, with Symfony.

I stripped it down to test with the output of the application on the command line and isolated the issue to a <link> tag for Bootstrap 4.3 by commenting out tags until I found which one was causing the issue.

I don't care what the issue was - upgrading Bootstrap to 4.6 worked

I hope this helps someone - it was frustrating.