Chinese wikivoyage pagebanner cannot automatically convert simplified or traditional Chinese using "pgname" and "caption" parameters...

In the traditional Chinese interface, Simplified Chinese was found. After checking "Template:Pagebanner" as "pgname" and "caption", there is no automatic conversion between Traditional Chinese and Simplified Chinese.

Can it be resolved in Wikivoyage? If so, how can I be fix it?

Simplified Chinese and Traditional Chinese:
荔湾 <==> 荔灣
万华 <==> 萬華

Problem code(in Template:Pagebanner)-

| {{#if: {{{caption|}}} | tooltip={{{caption|}}} }}
| {{#if: {{{pgname|}}} | pgname={{{pgname}}} }}

Test page-
https://zh.wikivoyage.org/wiki/User:Yuriy_kosygin/工程品實驗室
https://zh.wikivoyage.org/wiki/臺北/萬華

Page Banner(Template)-
https://zh.wikivoyage.org/wiki/Template:Pagebanner

Thanks.