Bug avec Smart Slider 3: Bug fix request

Hello,
After a lot of time spent finding a layout bug with Nextend support (Smart Slider 3), the pb comes from your plugin.
As you know Smart Slider is the most pro slider plugins on WordPress and their support is very competent and efficient, so we can trust them with their technical feedback.

Your plugin is fine, but I had to disable it on my sites that use Smart Slider.

Nextend's response:

We have to use & instead of just writing out a & sign, to stay compatible with some plugins. Browsers are handling this well, so this is a correct link to be used and as you see on loaded.png, this “200” status of your Google font means, that the font loaded. This is why without Litespeed cache your website stays fine. But Litespeed cache tries to access this link directly, with & and this creates the issue, because that link won’t load the Google font. This is a bug in Litespeed cache’s code, as they should replace & signs with & before they are trying to put the url’s contents within their minified CSS files, so I suggest getting in touch with them, and ask them to fix this error in their code.

As a temporary solution, I suggest turning off their CSS minification.`

Best Regards