My Content Type instances have duplicate Document IDs (dlcdocid).

Hi, I have a Documents library with Content Types enabled, and with the Document ID service enabled. However new documents do not have a unique ID, but all get assigned the same ID as the content type template.

The setup

1. I enabled Document ID service via the Site Collection Features:
   https://<domain>.sharepoint.com/sites/<sitename>/_layouts/15/ManageFeatures.aspx?Scope=Site
2. I enabled and configured content types.
3. I created a Word template in the SharePoint library, and used Insert > Quick Parts > Document Property to create form fields sync'd with the Library/content type columns (Description, Project, Status).
4. I downloaded the Word template from the same library into my OneDrive sync'd location, and uploaded it to the site collection's Content Types https://<domain>.sharepoint.com/_layouts/15/online/AdminHome.aspx?modern=true#/contentTypes and sync'd to the site content types.
5. I created documents in the library using the "New" menu.

Later I ask the user or reviewer to update the document frontsheet with the dlcdocid (Insert > Quick Parts > Document ID value, or Insert > Quick Parts > Field... > DocProperty > _dlc_DocId) as well as the SharePoint Version using the policy label method (https://learn.microsoft.com/en-us/answers/questions/5146555/sharepoint-label-to-embed-version-in-word-doc-havi) via Insert > Quick Parts > Document Property > Label.

The Problem

In the Documents library, new Word files are being re-assigned the original dlcdocid of the template (say DOCUMENT-0123456789-5). Now the "unique" URL shows me a list of multiple files all with DOCUMENT-0123456789-5. This is a read-only field so I cannot edit or delete the IDs.

I want to have a Content Type template, with the frontsheet/header/footer fields sync'd with the Library columns, but I also want each document to have a unique ID and version.

Help requested

1. Is there a way to fix the template to clear the template ID, and to avoid this issue on future templates?
2. How should I replace the template?
   1. Is uploading Template copies to the Content Type bad?
   2. Should I instead point to the file URL? Does it matter where the Template file is stored?
3. Are there any ways to reset the ID of the few existing documents with the duplicate value?