Hi Sid,
I see you asked a similar question before:
https://forum.mendix.com/link/questions/86755
The microflow timer is still the best solution. Just make sure that you don't refresh the full page but do a refresh in client of the object that has changed by retrieving it from the database. If that still triggers the note to disappear, then you might want to restructure your page and data model so the note falls outside of the refresh.