"Custom" collision preset does not work

Hello. I have troubles understanding the following behavior of Editor: If i set custom collisions for my actor, it does not trigger OnBeginCursorOver and OnEndCursorOver events. On other collision presets it works just fine, even with the same boxes checked. Can anyone explain this?

The default trace channel used in the PlayerController is Visibility.
Provided your actor has a component that blocks that channel with collision enabled it etc, it should work.
You can always manually set that channel at runtime (Set collision response?).