LibreOffice Build ID: 350m1(Build:2) is not writing Arabic

I’m using Ubuntu 12.04

From a few days ago after an update of libreoffice I’ve come to this problem.

I can’t write Arabic charters even no other CTL languages such as persian.

What happens is when i switch language to Arabic or Persian the cursor still blinks and nothing happens.

Even When you copy some Arabic text to a libreoffice still same nothing is copies and sometimes it just paste some numbers like (1475).

So what could I do?