Text spacing(kerning) problem in Korean language

I’ve used scrivener since version 2.x. in Korea.
After upgrading to 3.0 on macOS High Sierra 10.13.1, I have text kerning problem which didn’t occur in 2.x
The problem is character spacing is not constant like blelow.

스크린샷 2017-12-04 21.40.39.png
*Red line’s text spcing is wider than blue line’s text

This interferes with my writing.
I think 2byte laguage user would have same problem.
Maybe it’s because of punctuation.
This is a symptom that is not seen in previous versions, so please improve it in the next upgrade.

Thank you for your help.