Bug / Crash Rope cutting with collision

[spikebor]

Thank you! After I change the code to this it works

Code:

            var collider = ObiColliderWorld.GetInstance().colliderHandles[contact.bodyB].owner;
            if (collider == null) return;

            // retrieve the offset and size of the simplex in the solver.simplices array:
            int simplexStart = solver.simplexCounts.GetSimplexStartAndSize(contact.bodyA, out int simplexSize);

            // starting at simplexStart, iterate over all particles in the simplex:
            int particleIndex = solver.simplices[simplexStart];

            // do something with each particle, for instance get its position:
            var particleInActor = solver.particleToActor[particleIndex];
            // retrieve the actor this particle belongs to:
            var actor = particleInActor.actor;

I've done a rope cut sequence for unlocking a chest. Any tips to improve will be appreciate!