Windows Himalaya font not dispalying properly

Hello everyone, I am really puzzled with this issue: I am copying and pasting my Tibetan scrip in the Text Block and although the characters appear perfectly in the pop-up window, they display slightly differently (and incorrectly) on the file itself. I have also tried typing in directly in the pop-up window for Text, and the same thing happens.
Any suggestions? thanks

Hello - please send the font file to and we can test it here.