Every since the Atlassian update, I've been unable to @ mention co-workers in in-line comments via an attached PDF. For context, I upload PDFs for peer-review and feedback, and we add comments directly to the PDF in Confluence by dragging and dropping a "pin" button. The comment box appears, and if necessary, we can @ mention others. I can then "resolve" comments as I address them. Now, this feature seems to be disabled. I can @ mention in a comment at the bottom of the Confluence page itself, but I cannot add in-line comments to the PDF. Does anyone know I can get this feature back? Thanks.