Zoom Workplace Whiteboard: Some Traditional Chinese characters disappear after pressing Enter

Description:
In the new Zoom Workplace whiteboard, when I type Traditional Chinese characters in the text box and press Enter to confirm, some of these traditional characters will disappear automatically. Simplified Chinese works perfectly.
This bug affects my online Chinese teaching for Hong Kong and Macau students.
Steps to reproduce:

1. Open Zoom Workplace whiteboard

2. Add a text box

3. Input some Traditional Chinese characters

4. Press Enter → some characters vanish
Attached screenshot shows the problem. Please fix this encoding bug.