Hey ​@Chanakarn Rodtim, thanks for reaching out and for already trying some troubleshooting steps on your own! 

To get a clearer picture, could you let me know if this zooming issue happens only in the desktop app, or do you notice it in the browser as well? If you’re able to share a short screen recording, that would be really helpful to understand the issue better.

If you’re using the desktop app, can you trying is a full reinstall to see if that resolves the behaviour. We recommend keeping the desktop app updated to the latest available version. 

Thank you for your help!