Kde 6 apps and settings open on wrong screen

Since the update to plasma 6 every app and windows (dolphin, system settings etc) opens on the wrong screen (which is on the left). On plasma 5 I used to use a couple of scripts to force windows to open on my main monitor but unfortunately those scripts are not working after the new upgrade.

I also tried to set rules on both “special window settings” and “special application settings” without any luck.

Is there any way to force kwin to open on the right monitor?
Thank you in advance