There seems to be a problem with the handling of special chars.
I'm using joomla version 3.4.0 but I don't know if it just started or if the problem did already exist under the previous version.
The issue is, that a space is inserted in the escape code, so "&xxx;" will become "& xxx;" and therefore will not translate. When looking at the original article or site code, the escape code looks fine.
Right now the translation is more or less useless due to this issue.
Do you have any idea what could cause this?