How do you raytrace the mouse screen position onto a world XY Plane?

no… but red sphere apperars fixed … if i try to assign location to white sphere, it lock on red sphere position…

The return value in Line plane intersection is always false…

If i try to execute from input keyb it work correctly…print only one string with correct coordinates… but in event tick the result is wrong… It read 2 vector and print for 1 cicle 2 different value

Thank you for your help