What you were expecting to happen, and what actually happened:
Expected to show the current trial level, whats shown is that trials are completed up to Epic level
How often does this happen? When did it begin happening?
Since epic trials were released
Same issue on the Xbox version. The included screenshot shows the kingdom information screen. The issue relates to the trials progress section, on this screen. Once entering the trials menu, the individual trials correctly show their completed status.
No, The forums is the place to go for bug reports. Sometimes with certain cases like these you may be asked to escalate with a Support ticket for your own privacy reasons or if the development team might need more information to investigate or resolve your issue.