Select currency on registration

Dear WHMCS community,

I've just recently engaged into WHMCS and I am very pleased with this software and it's great functionalities.

One thing though that I've noticed that I've noticed though is that the "Choose Currency" option within the registration area is not working.

I've made several test registrations with different currency options, however if I am to check in the back-end the default's users currency is always set to USD.

Is this a known issue or is there any work-around available to have this problem resolved?

Some insight would be greatly appreciated.

Thank you very much,
rsdave

PS: I'm using the latest 5.2.14 version.