Try reloading the entire portal and share your observation.

Hi Basant,

Please follow the below steps at your end

1. Save As UpdateLocaleSettings to your custom ruleset. Please note it should have the same applies to class as the section where the dropdown is embedded
2. Add an onchange reload harness  action and specify the activity UpdateLocaleSettings. Add pyUseLocale as the parameter like below:

I have attached a document with screenshots for your reference.

Hope it helps!

Thanks,

Gisela

Hi,

Once user has selected the locale, save this preference to the corresponding operator record. Once changes are saved, relaunch the same portal.

Regards,
Ajit

Just to add to other answers, after calling the UpdateLocaleSettings Activity, you can call another action 'Run Script' and in the function name, provide "location.reload". that will refresh the browser.