Try this: Have Niagara particles (CPU) fall down towards the floor and bounce off the floor with collision (collision type “raytraced”). So far so good - but as soon as the floor moves upwards like an elevator, the particles will not bounce off but pass through the floor.
I think it is because the raytraced collisions are calculated with one frame delay, so it detects the particle only once it’s already past the colliding surface. I would think that should be easily solved with a bias or offset, but two days of research and experimenting did not get me anywhere.
Does anyone know a solution to this? Thank you!