PHPFusion Version: 9.10.20
PHP: 8.1.5 (tested other versions starting from 7.4 and higher)
Apache: 2.4.53, mod_rewrite is enabled

Links are not rewritten to SEF in source code. They are untouched if the links contain any params like profile.php?lookup=1 or infusions/downloads/downloads.php?download_id=1. After click on such a link, the requested site is correctly redirected to "profile-1/username" or "/downloads/download-1/downloadtitle"
Using internal links with params reduces seo score results and shows warnings in analyzer tools about not using parameters in internal links (if these links are not explicitely defined as "no-follow").

How to fix it?

Hi, the current SEF driver compiles all rules. So if a single rule breaks, the rest will glitch as well. That is unfortunately the main drawback of the current SEF system. To work around this, remove and uninstall all permalink rules and reinstall the "user profile" and see if profile.php?lookup=1 translates first or not? After that, install "download", and verify the links do translate on page load. If they don't, that driver is bad and cannot be used.

Thank you for your reply.
First i've deactivated all rewrites. Then i reactivated and reinstalled rewrite for user profiles only. After refreshing site using CTRL + F5 / CTRL + R all profile links was unchanged. When i visit a user profile, the current site is rewritten to SEF.

So i've deactivated rewrites for users profiles again and activated news instead. Same effect: after refreshing the site all news links with params was unchanged.

At last step i've deactivated rewrites for news and tried downloads instead. Rewrites for downloads activated, site refreshed, download links with params wasn't changed.

Maybe there's a bug in sef system?

I'll have a test run with current drivers during the weekend and get back to you on this.

If you or any dev member will fix this issue, there is another conflict in rewrites system between news category 'downloads' and downloads main site itself, which can be fixed too. If both have rewrites enabled and you want to view news category 'downloads', you get redirected to downloads main site.
I've fixed this for now by changing rewrites for downloads from to

Oh, thanks for letting us know. I'll open an issue on Github. https://github.com/PHPFusion/PHPFusion/issues/2391