To reproduce:
1. Open users attached project "Popular war.zip"
2. Open "Main.unity" scene
3. Enter Play mode
4. Press the Play button in the Game window

Expected result: no crashes after the scene is loaded
Actual result: Unity crashes at:
CollectAndProduceGameObjectHierarchy(Transform&, Transform*, vector_map<int, int, std::__1::less<int>, stl_allocator<std::__1::pair<int, int>, (MemLabelIdentifier)1, 16> >&)

Reproduced on:
2018.3.3f1 2019.1.0a14 2019.2.0a2

Notes:
-Reproduced on MacOS 10.14
-Win 10 machine.
-When trying to build for iOS Unity freezes.
-On 2017.4.19f1 Unity crashes while opening the project