Foul or incidental contact?

[Nevadaref]

Tough to decide from a written description.
Screens do not have to be anywhere near the player with the ball.
This could be an example of an illegal off-ball screen or it could be a defender illegally contacting a cutting offensive player.
These are the difficult judgment decisions officials must make hundreds of times during games.
I wish that I could offer the coach more feedback, but some plays just come down to what a particular person sees and thinks at a certain point in the game.