[Plugin: Custom Permalinks] automatically removing forward slash?

First of all, loving the plugin but I have one problem: If I do the following:

http://www.mysite.com/test

then this works ok. But if I do:

http://www.mysite.com/abc/test

i.e Add a forward slash for my permalink then for some reason it doesn’t work. It simply redirects this correct url to:

http://www.mysite.comabc/test

therefore removing the first slash at the end of my main url and obviously it doesn’t find the page.

Any help or advice would be greatly appreciated.

http://wordpress.org/extend/plugins/custom-permalinks/