Release : UIM OC 20.4 CU4
Working as designed
Infinite scrolling is implemented to avoid performance issues within Alarm viewer. In the old implementation, we used to bring all alarms data which were resulting in long times in loading alarms or freezing the alarms view for long periods.
The purpose of the Alarms auto-refresh setting is to stop the refreshing alarms view automatically but to load a new page set of alarms on infinite scrolling it requires a refresh, the same way when the user performs sorting on a column we require to refresh the page to show the new results.
This is an expected behavior of any standard web application. Please let me know if you need any additional information.