Form default language changed when unhide the hidden fields

My form default language (Chinese) is working fine at https://www.hartamas.com/affiliate/zh.html but the form default language becomes English when the hidden fields display at https://www.hartamas.com/affiliate/zh.html?agent=yes . Please assist to fix. Thanks.

The issue seems to be with the added URL parameter agent=yes. If you would like to have the default language and show the hidden fields, you can use this URL parameter ?language=zh&agent=yes

https://www.jotform.com/form/210521095089049?language=zh&agent=yes

Please give it a try and let us know how it goes.

Thanks for your suggestion but I can't use this method because I need to hide and unhide that 2 fields for different purpose.

Hello Hartamasre,

Kindly change the default language settings.

Let us know if this fits your requirements.

It's not working.

Please try to set your default translation to Chinese.

Let us know how it goes.