Steps to reproduce:

1) Download attached project and open in Unity
2) Enter play mode in "_Complete-Game" scene
3) Wait until the enemy will be close to you
4) Start shooting in his direction
Note: editor should crash
5) If 1st enemy died and application did not crash, restart and repeat 3-5 steps

Reproduced with:
2018.1.0b5, 2018.1.0b7

Not reproduced with:
2017.2.1p4, 2017.3.1p1, 2018.1.0b4

Regression since:
2018.1.0b5

Devices under testing:
0154 || Samsung Galaxy Note 8, OS: 7.1.1, CPU: Samsung Exynos 9 Octa, GPU: Mali-G71
0150 || Google Pixel XL, OS: 8.0, CPU: Snapdragon 821, GPU: Adreno 530
0162 || Razer Phone, OS: 7.1.1, CPU: Qualqomm Snapdragon 835, GPU: Adreno 540
0131 || Huawei P9, OS: 7.0, CPU: HiSilicon Kirin 955, GPU: Mali-T880