Need some help with Ivara augment

So, I really like playing Ivara when I'm running solo and I recently got the augment for her prowl skill, which says that I wont be detected by lasers. The problem is that this is bullshit and during half of the spy missions I still get detected with my prowl on. Why is that? Corpus spy is fine, but why doesnt the augment work on grineer spy missions and why the game doesnt tell me that?

EDIT: ok guys, thanks for the answers. Grineer spy missions have different tech and the mod for Ivara didn't tell me that for no reason. I really appreciate the answers :)