Trouble adding comments to highlighted text
I am suddenly finding myself having severe trouble adding comments to highlighted text on a PDF. It has always been the case in the past that when I wish to add a comment to highlighted text, all I need to do is double click on the highlight and a box comes up for me to type the comment in.
However, as of today this has suddenly changed. Instead, when I double click on the text to add the comment, it fails to bring up the box for me to add the comment in, and instead opens a 'reply' field (see screenshot below):

This is not what I want to do. I do not want to 'reply' to the highlight, I want to add a comment that will appear when the user hovers the mouse over the highlighted text. In the past this has always been a straightforward task, all I have needed to do is double-click the highlighted text and a box will appear for me to type the comment in, so why has this suddenly changed and how can I get it back to the old setup so that I can just add the comment with ease?
