Crash: physx::IG::IslandSim::removeConnectionInternal

When I turn on my pedestrians unity crashes soon after with this error. Any ideas?

========== OUTPUTTING STACK TRACE ==================
0x00007FF747210E84 (Unity) physx::IG::IslandSim::removeConnectionInternal
0x00007FF747211079 (Unity) physx::IG::IslandSim::removeDestroyedEdges
0x00007FF747212B92 (Unity) physx::IG::ThirdPassTask::runInternal
0x00007FF747164722 (Unity) physx::Cm::BaseTask::run
0x00007FF745F196B4 (Unity) PhysxJobFunc
0x00007FF745951571 (Unity) JobQueue::Exec
0x00007FF745951CCD (Unity) JobQueue::ExecuteJobFromHighPriorityStack
0x00007FF745951E4E (Unity) JobQueue::ExecuteOneJob
0x00007FF745F662D5 (Unity) CompletionTask:rocessAllPhysicsTasks
0x00007FF745F1BAE4 (Unity) PhysicsManager::Simulate
0x00007FF745F177AE (Unity) `PhysicsManager::InitializeClass'::`2'::FixedUpdatePhysicsFixedUpdateRegistrator::Forward
0x00007FF745A7FA78 (Unity) ExecutePlayerLoop
0x00007FF745A7FB4D (Unity) ExecutePlayerLoop
0x00007FF745A84D8C (Unity) PlayerLoop
0x00007FF743E360DC (Unity) PlayerLoopController::UpdateScene
0x00007FF743E34078 (Unity) Application::TickTimer
0x00007FF74479C8CE (Unity) MainMessageLoop
0x00007FF7447A6B08 (Unity) WinMain
0x00007FF74779FA32 (Unity) __scrt_common_main_seh
0x00007FF9DC077BD4 (KERNEL32) BaseThreadInitThunk
0x00007FF9DCB0CE51 (ntdll) RtlUserThreadStart