Are you keeping the Tableau desktop and server website open the entire time? I encounter the same issue when I keep the browser and/or dekstop open during the refresh period. Dekstop and the server website do not update automatically even when the data has been updated. After each day we close our browsers and desktop applications and re-open them when we start the next day.
Since the data does update but does not get visible in the view it is not an issue with the data or the refresh it is purely an issue of visualisation. Which makes me believe it has to do with desktop or server browser itself.
Thank you for the response. The issue happens irrespective of whether we close or keep the browser/desktop open.