Since Northstar isn't affected could he still prob her pulse wave roll?

Assuming he can use theme probs this turn, or let's imagine that he even has prob on his dial.

This is a similar issue with sungirl and superboy prime.

Her power allows a pulse wave when adjacent to a PRime's titan figure and he has prob on his dial. Just wondering if they can use the prob since they are unaffected by the pulse wave.

Yes, Northstar could use probability control on the attack roll for her pulse wave attack