Optimization and Minification of SP-Pagebuilder CSS makes images disappear. Excluding that, no benefit received by use of Route 66 plugin

 Hi, the issue is that Route 66 maybe doesn't interact well with SP-Pagebuilder. My site use SP-PB and the major problem it has with pagespeed it's about CSS. I've tried to use Route 66 but if I try to optimize CSS, the pages doesn't display images anymore.
This happened on mobile device and it is well displayed by Pagespeed final report.
I cannot find a solution but I've found only the cause, at the moment.
Thanks a lot
Marco

Yes, excuse me.... what a beast I am....
www.consulenzapizzerie.it

I can give you the access to administration function, ask me for this in private.

I can give you the access to administration function, ask me for this in private.