In Raspbian OS, Having problem with moving &/or resizing app windows after adding multiple Workspaces/Desktops. Mouse cursor Hover over top & edges of selected display shows anticipated control functions but left/right click mouse function not accepted.
WEB’s work around is as follows:
Place mouse on /select App window you wish to work with. Alt+Space keys (normally mouse right click) opens a pull-down which allows the selection of the normal actions.
This works but interrupts the flow as Application windows top right icons do not work & moving new apps out of the way no longer smooth of normal windowed OSes.
sudo apt-get update
andsudo apt-get upgrade
. If that doesn't fix it, open a support ticket with Openbox (assuming that's your window manager, it's the default) here.