Enterprise Monitor - Dashboard requires Login after upgrade
after updating from 2018.2.1 to 2021.1 we observe a change in the behaviour of the Messagebank Enterprise Monitor.
In 2018.2.1, when clicking on a specific line inside the configured systems the system dashboard opened, giving insights about queue counts and error conditions.
In 2021.1. when doing the same thing, the login screen of the designated server instance shows up, but does not allow to login (any try, even with valid %All credentials results in a reload of the page). I even created a new user, remebering the password hash issue mentioned in https://docs.intersystems.com/iris20204/csp/docbook/DocBook.UI.Page.cls?... but that did not solve the problem.
I attached some screenshots for illustration.
Any recomendations how to fix this issue?
Regards and thanks,