Raycasting n their collisions

[steady raven]

Hi, I was messing around with collision groups and changed the group of my ground collisions but now all of a sudden raycasts stopped working( actually the work but return nil so I think that means theyre not colliding )
So my questions is; Are raycasts effected by collisions groups?
And if so, how could I add it to one?

[distant jackal]

you can specify a collision group for the raycast, so all the groups that can collide with that group will be detected by the raycast