I downloaded the YAF 2.31.9 source code to recompile it with my 'personal' fixes for the simplex theme we discussed here:
https://yetanotherforum....mplex-theme-improvements However, I detected that some of them were integrated! Fore example, I found this line:
//$font-size-base: 0.8125rem !default;
I recompiled the source files 'as is' but got another version of bootstrap-forum.css and bootstrap-forum.min.css if we compare them with what you included into the release installation!! In the installation, you'll find a lot of .8125rem sizes, but you will not see them if you compile your source files.
And the situation is even worse. if I recompile your sources and upload the resulting bootstrap-forum.min.css to the webserver, all hyperlinks on the forum become underlined. Arghhh...
Something is definitely wrong in the sources and release files for YAF 2.31.9 - at least, for the simplex theme. Please, check this yourself and fix.