OnParticleCollision not responding!

Hello, OnParticleCollision() never fires, even though i have it both on a script on the player, aswell as on the script attached directly to the particle system. The Player has a sphere collider.

This is a big problem, since OnParticleTrigger() fires permanently when enabled on a particle system, even if all options are set to ignore, and no collider is listed! (https://forum.unity.com/threads/onparticletrigger-always-triggering.546298/). Old post, but still is the same for me.
I need one option to work.

I have a video to illustrate the problem: https://youtu.be/vf5-08DwLnI In the video another weird thing is visible: The particles do appear to collide (They are pushed away by the playerbubble) But the Debug.LogError from OnParticleCollision does not appear. When the speed of the particles is set to 0, they aren't even pushed away anymore. This too is a problem, because i want them to stand still at first.

Here are my setups: