Projectile collision problem with Pawns

Trying to set up a projectile that overlaps other projectiles and pawns. I’ve set up a custom Projectile entry in Project Collision settings and overlapping other projectiles works as expected.

However, I’m running into a problem with pawn interaction. When Projectile Bounce is enabled, it will still collide with Pawns.

Is this a bug or unavoidable with Bounce enabled?

I was able to come up with a workaround. By adding a larger trigger sphere as part of the projectile, using the OnEnter event, pawns that should overlap were added to the built-in IgnoreActorWhenMoving list, then removed when the overlap ended.