Hi.
I have been getting incredibly frustrated by the same issue for about 3 weeks now and have just managed to remedy it by complete chance after going through every single preference option and trying various combinations! Hopefully this works for you.
All in the "preferences" menu:
- Content Management: Ensure reading order is left-right (assuming that is the direction you read and write in).
- Language: Ensure Application Language is set to "Same as the operating system" and that again, the Default Reading Direction is set to "Left to Right". Tick the "Enable right-to-left language options" (although I'm not sure if this makes any difference at all but I have it ticked!). In Select Font, choose "GB183 compatible font" instead of application default. I think this mnight be an important one. The again insure that "Left to Right" is chosen in the middle eastern language tab, and untick all three options of "Ligatures", "Hindi Digints" and "Enable Writing Direction Switching".
- Search: Untick "Ignore Asian character width" and "Ignore Diactrics and Accents"
I'd be really interested to see if this works for you as well. It's certainly fixed the problem my end!