Nvidia Flex's soft surface - Spawning particles on Hit events

Hi guys, I’m testing Nvidia’s Flex now and wanted to ask those who have experience with it - how do I spawn particles in the deformed areas?

I have a standard UE’s FPS shooter pack with gun shooting a ball (projectile component) with a sphere collision on it. Yet nothing happens when it hits the intact or deformed surface. I tired turning on “simulation generates hit events” on both actors (projectile and the Flex object) and turned on Block all/dynamic in collision presets but still nothing happens. I also tried to trigger Hit Events/ On Component Hit events on collision - still nothing.

ScreenRecorderProject70

In other words is there some native Flex Event that registers deformation and its origin? Thanks a lot in advance!