Created attachment 158098 [details] Sample file containing a text box and Chinese/Alphanumeric in it Version: 6.4.0.0.beta1 Build ID: 4d7e5b0c40ed843384704eca3ce21981d4e98920 CPU threads: 4; OS: Linux 5.4; UI render: default; VCL: kf5; Locale: zh-TW (zh_TW.UTF-8); UI-Language: en-US Calc: threaded Steps to reproduce: 1. Open a new Writer file 2. Insert a text box 3. Input some Chinese words and alphanumeric characters in it. The default font size of Chinese is 10.5, alphanumeric is 12. 4. Select all the characters and change the font size to 14 with text object toolbar. Only alphanumeric characters were changed. Chinese character remained 10.5. 5. Select all the characters, click menu "Format - Characters", and change the Asian Text Font size to 14. When clicking OK, Writer crashed. Version 6.3.4.2 is okay. It is a regression bug.
Looks like a duplicate of Bug 130286 and Bug 130482. Should be fixed in 6.4.1. *** This bug has been marked as a duplicate of bug 130286 ***