When I try to open Display Fusion (as soon as I click on the Tray icon)
I get this message:
An error occurred while updating the preview
Object reference not set to an instance of an object

I assume it has to do with my monitor config:
one is landscape, the other is portrait

I can still access everything though, and the individual wallpapers can
still be changed.
The preview also works too.

Any ideas out there?