The Summary tab of constituent records lists an overview of recent communication, donations, and activities for constituents. The Recent and upcoming communications section of this tab should include a list of the most recent (and future) communications that are planned or have taken place for the constituent. However, communications are listed backwards, with the oldest communications listed first. This only occurs in version 2.7 and has been resolved in versions 2.9 and higher.
Download and install the latest version and patch, if applicable.