Dear @pdecaro,
as very often we suggest to do is to avoid the use of multiple screens and to use virtual screens instead. The annexed .aia shows you how to use Vertical and Horizontal arrangements to behave like "real" screens while using only Screen1 (this offers infinite advantages with respect of using many "true" screens).
Anyway if you search the forum you'll find also a specific section in the FAQ (thanks to @ABG ) regarding how to correctly switch between screens. I think that you'll find ttherein the solution to your issue.
Ciao !
MultipleScreenLittle.aia (849.0 KB)