CSS and review stars

Hi,
I have some CSS issues, some of which may be related to the GD update.

The review stars have turned black? I have the colour set in the review plugin.

Some of my fontawesome icons have given up on me. I have entered some in my child theme CSS file using the Unicode and setting the colour, size etc. Funnily enough, only some icons done this way are affected. This is for my menu icons. GD icons for search suddenly changed as well.

There are several other small CSS issues across the site. Seems that when I use Yellow Pencil, the changes only sometimes take effect? When I see something I want to change and open the YP editor, it will often look ok and any changes I do are gone as soon as I close the editor.

Other times YP changes seem to take effect only for later to be gone.

I use the Booster caching plugin. Even when I deactivate the Booster plugin, the issue is the same. I recently started using the CloudFlare service, but even when I exclude the CSS from combines or set it to development mode, it still makes no difference.

As I am now slowly starting to promote my site, it is a bit disappointing to suddenly realise that something I thought was ok is suddenly out of whack.

Thanks,
Lise