Hi,

Poss bug in 4.6.8, WebP format seems to be missing from the list of image files in the auto generated .htacess file for Rewrites?

<IfModule mod_rewrite.c>
Options -MultiViews
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule \.(js|css|jpeg|jpg|gif|png|ico|map)(\?|$) /404error.php [L,NC]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

(WebP fully available and in use on my server)

Thank you for reporting. I have added a bug report for this so that we can get the issue resolved

This has now been resolved in the 4.6.9 version which has just been released. Please feel free to let us know if you are seeing any issues after upgrading