The flash of fonts - just in case you didn't read see this - explaining the flash of unstyled content

"When enabled the javascript font loader is used to load fonts. If you are loading a single google font it's likely that having this option disabled will yield a better page load speed. However if you load more than one font the font loader allows the the page to load before the resources are loaded. This can lead to a FOUT - flash of unstyled content."

If you turn that off we are back to square one - is that correct?
e.g. using Marck+Script means it doesn't work for you?

If thats the case you may need to use

Accessing the font via the alternative google font options

<link href='fonts.googleapis.com/css?family=Marck+Script&subset=cyrillic' rel='stylesheet' type='text/css'>

or

@import url(fonts.googleapis.com/css?family=Marck+Script&subset=cyrillic);

Via the admin for me on a localhost

Paul,
sorry I am a bit confused

1. Yes if i switch off the don't loader option the Marck font does not work but I don't like the flash effect (I have read the comment) and (what is more important) i can not change the body font without changing logo font.
2. As I understand the reason is the '&'
3. Could you send me your font settings for your last screenshot?
4. What is the alternative google font option and how to use it via template admin?

So, my question is - how to use cyrillic fonts without using font loader? And how change only body font?

Ok I think I've made things more confusing for you

Perhaps its best if you create a ticket - please include a summary of the problem you have and a link to this thread

Cheers
Paul