Crash Ue with simulation and morph collison

[Flingus83]

Good morning,

I want to make a sequencer on a simulation with collision but,
I have unreal which crashes every time I change the value of morph.

I’ve tried several different ways but I can’t find a solution.

The simulation is with Niagara Fluids and to indicate to the simulation that it is a collision, I have to place the word Tags.

I put it on the 3 static meshes found in the BP Add Static Mesh Component
As well as on the BP_Morph

For the moment it works but as soon as I modify the Value Morph, unreal engine crashes
I have this message.

I also tried to do the BP_Morph by stopping at Set Morph Target and adding in the Sequencer the 3 Statics Meshes > Convert to spawnable. I position their spawns and when playing the Sequencer it crashes when the niagara needs to adapt to the collision.

If anyone can help me, thanks. It’s a small project but I’m stuck on this point.

[Flingus83]

I noticed that the collision works by putting the BP in System Niagara’s Source Actors.

Apparently it uses Skeleton Tree collision.

Of course there is only one position. Whether in position 1 or -1, the collision remains at 0.

Is it possible to add 2 additional collisions in position 1 and -1?

Maybe I won’t crash Ue5 changing the key value with Niagara doing like this.