Outlook 2016 shows up on task bar but will not appear on screen

Hi,


When I open Outlook 2016 it appears in the task bar but not on the screen. I have been running for weeks over multiple screens without any issue and just today it was on my screen and then somehow it is no there. When I close and re-open Outlook it is still in the task bar but not maximised on screen. Can someone help please.


Thank you...

Outlook 2016 shows up on task bar but will not appear on screen