Anonimity during the review process when using customed review form

Steps I took leading up to the issue

  1. I have created a customed review form.
  2. When reviewer uses it and wants to add a comment for author (or when the author wants to answer to the reviewer’s comment, the anonimity is being uncovered, as the name(s) of reviewer or/and author begin to be visible.
  3. Is there any way to fix this issue? We use double blind review approach. Thank you in advance for your time and assistance.

What application are you using?
OJS 3.3.11.