I didn’t have the issue for a long time and it just came back
I have a panel at the bottom of the screen
Application windows ( Office, Web browser) are going " under the bottom panel"…
I guess / think some recent updated brough back that problem but just noticed it
With some of those App’s Window, the information hidden by the panel are important
For now I am DOCKING the panel so it hide less
JF
have a fiddle with panel size - see if that makes a difference.
Playing with the size of the panel did’t help
Deleting panel and recreating it with default default, neither.
I will try different things and let you know.
On my 2nd ( left ) scree, PLank is at the bottom too, and Application windows position themselves properly above Plank positionned tat the bottom of the screen,
As you can see on this picture, I can’t click the REPLY button. 
In Settings - Displays try moving both screens to be bottom aligned (or top aligned) - maybe that could be the issue.
Found the source of the problem !
OMG Shame on me
Misalignment of my 2 creen in " SCREEN DISPLAY" !!
Was impacting the panel on the main screen…
JF
