Bug / Crash Plugin extrimely unstable with Cloth Simulation. Unity crashes all time

[mmortall]

Project zip located here:
https://www75.zippyshare.com/v/sWFipAtQ/file.html

Unity can crash after 4-5 tries. But standalone build crash immediate.
Open main scene and press Play
Got good crash logs on mac os:

Code:

Thread 50 Crashed:
0   libsystem_kernel.dylib         0x00007fff57ad4e3e __pthread_kill + 10
1   libsystem_pthread.dylib       0x00007fff57c13150 pthread_kill + 333
2   libsystem_c.dylib             0x00007fff57a31312 abort + 127
3   libc++abi.dylib               0x00007fff55a0cf8f abort_message + 245
4   libc++abi.dylib               0x00007fff55a29952 __cxa_pure_virtual + 18
5   com.Ark.Oni                   0x00000001207e0d13 Oni::CookedConstraintBatch<Oni::DistanceConstraintData>::EvaluateGaussSeidel(Oni::BatchedConstraintGroup<Oni::DistanceConstraintData>*, float)::'lambda'(std::__1::pair<int, int>)::operator()(std::__1::pair<int, int>) const + 275
6   com.Ark.Oni                   0x00000001207e09c4 std::__1::shared_ptr<Oni::Task> Oni::Parallel<Oni::CookedConstraintBatch<Oni::DistanceConstraintData>::EvaluateGaussSeidel(Oni::BatchedConstraintGroup<Oni::DistanceConstraintData>*, float)::'lambda'(std::__1::pair<int, int>)>(Oni::CookedConstraintBatch<Oni::DistanceConstraintData>::EvaluateGaussSeidel(Oni::BatchedConstraintGroup<Oni::DistanceConstraintData>*, float)::'lambda'(std::__1::pair<int, int>)&&, int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::shared_ptr<Oni::Task> const&, int) + 84
7   com.Ark.Oni                   0x00000001207df140 Oni::CookedConstraintBatch<Oni::DistanceConstraintData>::EvaluateGaussSeidel(Oni::BatchedConstraintGroup<Oni::DistanceConstraintData>*, float) + 736
8   com.Ark.Oni                   0x000000012080bd37 std::__1::shared_ptr<Oni::Task> Oni::Parallel<Oni::BatchedConstraintGroup<Oni::DistanceConstraintData>::EvaluateGaussSeidel(float)::'lambda'(std::__1::pair<int, int>)>(Oni::BatchedConstraintGroup<Oni::DistanceConstraintData>::EvaluateGaussSeidel(float)::'lambda'(std::__1::pair<int, int>)&&, int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::shared_ptr<Oni::Task> const&, int) + 119
9   com.Ark.Oni                   0x000000012080b555 Oni::BatchedConstraintGroup<Oni::DistanceConstraintData>::EvaluateGaussSeidel(float) + 149
10  com.Ark.Oni                   0x000000012082c7b9 Oni::ConstraintGroupBase::Apply(float) + 425
11  com.Ark.Oni                   0x0000000120815ccc Oni::Solver::ProjectConstraints(float) + 508
12  com.Ark.Oni                   0x00000001207d13c1 Oni::Task::Perform() + 305
13  com.Ark.Oni                   0x00000001207e2227 std::__1::__thread_proxy<std::__1::tuple<Oni::TaskManager::TaskManager(unsigned int)::$_0> >(void*, void*) + 1047
14  libsystem_pthread.dylib       0x00007fff57c106c1 _pthread_body + 340
15  libsystem_pthread.dylib       0x00007fff57c1056d _pthread_start + 377
16  libsystem_pthread.dylib       0x00007fff57c0fc5d thread_start + 13