Steps to reproduce:

Import the attached MinimalReproCurveCrash.unitypackage.
Open Repro Scene.
Observe the UUM144792MinimalRepro.cs script. It lets the particle effect become culled offscreen and finish, then assigns a 64-key curve and calls Emit().
Enter Play Mode.
Observe the Editor.

Actual results: The Editor crashes.

Expected results: The Particle System emits without crashing the Editor.

Reproducible with versions: 7000.0.0a3

Not reproducible with versions:

Can’t test with versions:

Tested on (OS): macOS

Notes:

Callstack:

#0  0x00000107ebb7dd in PolynomialCurve::BuildCurve(AnimationCurveTpl<float> const&, float)
#1  0x00000106a6363d in MinMaxCurve::FindMinMaxIntegrated() const
#2  0x00000106b75f26 in VelocityModule::CalculateProceduralBounds(MinMaxAABB&, Matrix4x4f const&, float) const
#3  0x00000106a53f89 in ParticleSystem::UpdateBounds(ParticleSystem const&, ParticleSystemParticles&, ParticleSystemState&, ParticleSystemReadOnlyState const&)
#4  0x00000106a505ca in ParticleSystem::Update1b(ParticleSystemUpdateData&, int)
#5  0x00000106a5022c in ParticleSystem::UpdateFunction(ParticleSystemUpdateData*)
#6  0x000001086f0543 in ujob_execute_job(ujob_control_t*, ujob_lane_t*, ujob_job_t*, ujob_handle_t, unsigned int)
#7  0x000001086f0d66 in lane_guts(ujob_control_t*, ujob_lane_t*, int, int, ujob_dependency_chain const*)
#8  0x000001086f261f in worker_thread_routine(void*)
#9  0x00000108764d5f in Thread::RunThreadWrapper(void*)
#10 0x007ff80a513d49 in _pthread_start