I am suspecting that my Firefox extension Grammarly has an incompatibility issue with WoltLab. If so, it would be the first time I have seen it have a compatibility issue anywhere.
Pasted into code wrapper
Apache Configuration
# BEGIN WordPress<IfModule mod_rewrite.c>RewriteEngine OnRewriteBase /RewriteRule ^index\.php$ - [L]RewriteCond %{REQUEST_FILENAME} !-fRewriteCond %{REQUEST_FILENAME} !-dRewriteRule . /index.php [L]</IfModule># END WordPress
Select text first then add code wrapper
Apache Configuration
# BEGIN WordPress<IfModule mod_rewrite.c>RewriteEngine OnRewriteBase /RewriteRule ^index\.php$ - [L]RewriteCond %{REQUEST_FILENAME} !-fRewriteCond %{REQUEST_FILENAME} !-dRewriteRule . /index.php [L]</IfModule># END WordPress
I wonder if this was the problem or not.