If it's not triggering then there's something off in your Transition Smart List. Please post a screenshot.
I prefer running batch smart campaigns to manage this more flexibly. Also, 99.999% of situations DO NOT require a triggered transition because you are sending X times per week or month. Do you really need to take action immediately?
+1 on Josh here. Batch SC are better, starting with easyness to debug and also more powerful.
Please provide a screenshot.
Thanks, we have solved it now - was a problem with the links and our UTMs in the transition rules. We changed our filter from 'clicked link in email' to 'visits webpage', and link contains xyz, which solved our issue.