Thanks a lot for your review. It would help me a lot to understand the context better to be able to reproduce the issue:
Is the extension used on GitLab or GitHub?
Is it a seld-hosted version or the official one?
Any particular setting? (e.g. side-by-side review)

It would be fantastic if you could share that information. Don't hesitate to open an issue at https://gitlab.com/davidfou/conventionalcomments-web-extension/-/issues/new?issuable_template=Bug