Repro steps:
-download the project (either attached, or from the asset store)
-play until you get the first key
-go right off screen
- crashes both in editor play mode and in Windows 10 standalone build
- Unity 2018.1 0b8
- does not crash in Unity 2017.30f3

========== OUTPUTTING STACK TRACE ==================

0x000000014055DF59 (Unity) MemoryManager::Reallocate
0x0000000140562878 (Unity) realloc_internal
0x00000001405F56EF (Unity) dynamic_array<AABB,0>::reserve
0x0000000140645804 (Unity) dynamic_array<AABB,0>::emplace_back_uninitialized
0x000000014063D070 (Unity) RendererScene::AddRendererInternal
0x000000014077CFFF (Unity) Renderer::AddToScene
0x000000014078559E (Unity) Renderer::SetupNewRendererForScene
0x0000000140837639 (Unity) SpriteRenderer::AwakeFromLoad
0x0000000140C42EE1 (Unity) AwakeFromLoadQueue::InvokePersistentManagerAwake
0x0000000140C45949 (Unity) AwakeFromLoadQueue::PersistentManagerAwakeFromLoad
0x00000001409AF02C (Unity) LoadSceneOperation::CompleteAwakeSequence
0x00000001409B1652 (Unity) LoadSceneOperation::PlayerLoadSceneFromThread
0x00000001409AFC04 (Unity) LoadSceneOperation::IntegrateMainThread
0x00000001409B331B (Unity) PreloadManager::UpdatePreloadingSingleStep
0x00000001409B300D (Unity) PreloadManager::UpdatePreloading
0x000000014094755D (Unity) `InitPlayerLoopCallbacks'::`2'::EarlyUpdateUpdatePreloadingRegistrator::Forward
0x0000000140946C3B (Unity) ExecutePlayerLoop
0x0000000140946D04 (Unity) ExecutePlayerLoop
0x00000001409498EC (Unity) PlayerLoop
0x00000001413C1237 (Unity) PlayerLoopController::UpdateScene
0x00000001413C06AA (Unity) Application::TickTimer
0x00000001415AE336 (Unity) MainMessageLoop
0x00000001415B032E (Unity) WinMain
0x00000001426FD297 (Unity) __scrt_common_main_seh
0x00007FFC53B61FE4 (KERNEL32) BaseThreadInitThunk
0x00007FFC53CFEFB1 (ntdll) RtlUserThreadStart

========== END OF STACKTRACE ===========