i'm just configuring new application in dynatrace and I've a strange situation with user tagging.
I define a CSS Selector with a (very) simple selector : #user
I don't use regex on it.
Most of the time, I can see the login but on some sessions, It's always an anonymous sessions.
If I check this session, I can see a lot of user's actions after the login page.
So, Why for this session, I can't have the username?
You verify if the users access page with html elements defined in css selector.
Confirm if all pages utilized to usertag has the elements math to css selector.
verify if usersessions not start before a configure usertag.