At the moment, comments are unavailable on my Galaxy S21+ 5G and have been unavailable for several days since last update. Another earlier model phone on an earlier android version is working fine in my household. I contacted their helpdesk and ultimately got this response... Our developers are aware of an issue in which comments on incidents are not displaying for a small number of users. They are working toward resolving this prior to our next Citizen app version release for Android users. This version should be released in the coming days. Once you update your Citizen App to this new version, you'll be able to see and leave comments again. We sincerely appreciate your patience!