Hello,

I just have this small concern if you have checked Overwrite Existing Terms.

You can refer answer from Akram here.

https://www.odoo.com/forum/help-1/question/correct-way-to-add-translations-to-odoo-through-po-files-72140

This says how to add translation correctly step-by-step.

Thanks.

Had you added the translation doc like this:

<template id="report_invoice">

     <t t-call="report.html_container">

     <t t-foreach="doc_ids" t-as="doc_id">

    <t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', 'account.report_invoice_document')"/>

    </t>

   </t>

</template>