The usernames on comments entered under a patient do not have their usernames displayed properly. At the very least, the name should be displayed. Ideally, the name should be displayed with a link to their profile.
On a PT instance > 1.4 with the xwiki 10 upgrade:
Add a comment when viewing a patient. Notice the username contain html-like tags.
Disregard the hard to see "cancel" button, it might be a cache issue on my end.