This behavior is seen only with the arguments that are macros and only in pipeline details view.
Fixed an issue with runtime arguments re-rendering and losing focus when containing macros in preview.
debugged the issue - in pipeline configuration store, we reset uniqueId for macros everytime we retrive runtime arguments for display. Because of this the runtime argument rows are re-rendered and the focus is lost from the row. Working on simplifying the logic there. Will have PRs out soon for 6.1.3, 6.2 and develop as the simplified logic to retrieve runtime arguments applies there as well.