Parameter interpolation is not working (coded using typescript)

[dia-susca]

I was going to open a bug report for this, but I'm not sure if it's a bug, or if I'm missing something.

My application has the following setup:

First, create i18n

File internationalization.ts

import { createI18n } from 'vue-i18n'

export const i18n = createI18n<false>({
  legacy: false,
  allowComposition: true,
  globalInjection: true,
})

import type { LocaleMessage } from '@intlify/core-base'
import type { Locale, VueMessageType } from 'vue-i18n'

export type MessageSchema = {
  [key: Locale]: LocaleMessage<VueMessageType>
}
export default i18n

Load i18n in app
File main.ts

import i18n from './shared/types/internationalization'
const app = createApp(App)
app.use(createPinia())
....
app
  .use(i18n)
  .use(getRouter())
  .mount('#app')

File that loads localization from server, at initialization MyEventHandler.ts

  async myInternationalization() {
    const myTranslations = (await this.api.call({
      href: '/internationalization',
      method: 'GET',
    } as Link)) as MessageSchema
    this.handleInternationalization(myTranslations)
  }
  handleInternationalization(messageSchema: MessageSchema) {
    for (const locale in messageSchema) {
      i18n.global.setLocaleMessage(locale, messageSchema[locale])
    }
  }

All of the above work so that when I call $t or t in a component, the label is translated. All the labels are printed if I console.log i18n.global.messages.value

However, when I try to interpolate parameters in a ts file, it's not working

File passAMessage.ts

import {
  i18n,
} from '@/shared/types/internationalization'
....
addMessage(response: ResponseMessage) {
    this.sendMessageToUI( i18n.global.t(response.message, response.args) )
  }
.....

This method receives a pair of {label, string[] } arguments. However, the string that results from calling t does not interpolate the given parameters.
For example, if my definition for the translation is:

my.message=The planet {0} that you are looking for is unknown

And I pass the parameter

{
    args: ['Venuz']
    message:"my.message"
}

I will obtain a string with value: The planet {0} that you are looking for is unknown
Instead of The planet Venuz that you are looking for is unknown

I appreciate any guidance you might have.