[Plugin: SimpleReach Slide] Problem with cyrillic links

Hi!

I am using the plugin on this website:
Muskuli.com
For SEO purposes our posts are with cyrillic permalinks that lead to very strange results in SimpleReach slide links. For example, the post is:

http://muskuli.com/%D1%81-%D0%BC%D0%B0%D0%BB%D0%BA%D0%B8-%D0%B4%D0%BE%D0%B7%D0%B8-%D0%BA%D1%8A%D0%BC-%D0%B3%D0%BE%D0%BB%D1%8F%D0%BC-%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B5%D1%81/

and the result in the slide leads to:

http://muskuli.com/%D1%81-%D0%BC%D0%B0%D0%BB%D0%BA%D0%B8-%D0%B4%D0%BE%D0%B7%D0%B8-%D0%BA%D1%8A%D0%BC-%D0%B3%D0%BE%D0%BB%D1%8F%D0%BC-%D0%BF%D1%80%D0%B4,%EF%BF%BD%604-t%60K

And that leads to 404 page.
Is there anything we can do to avoid that?

http://wordpress.org/extend/plugins/simplereach-slide/