Steps to reproduce:

1) Download attached project 'ShurikenCrash.zip' and open in Unity
2) Build and run 'Play' scene on a device
3) Drag and drop arrows from the bottom to the center
Up arrow means that turtle will go forward
Left/right arrow means that turtle will rotate 90 degrees left/right
Watch attached video 'repro.mp4' to see how this arrow system works
Note: Since map is always random generated its hard to describe which exactly arrows you should use
4) Press 'Play' button
Observe crash after level is completed (to complete this level takes around 10s)
Fatal signal 11 (SIGSEGV), code 1, fault addr 0xbacd0000 in tid 18544 (Worker Thread)

Reproduced with:
5.5.1p1, 5.5.3p1, 5.6.0p1, 2017.1.0b1

Project crashes after splash screen with 5.5.1f1 and older, so I wasn't able to check regression

DUT:
Reproduced with:
Google Pixel, OS:7.1.1, CPU:arm64-v8a, GPU:Adreno (TM) 530, Build:google/sailfish/sailfish:7.1.1/NOF27B/3687361:user/release-keys

Verizon SM G930V (Galaxy S7 Verizon), OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 530, Build:Verizon/heroqltevzw/heroqltevzw:7.0/NRD90M/G930VVRU4BQA2:user/release-keys

Google Nexus 5X, OS:7.1.1, CPU:arm64-v8a, GPU:Adreno (TM) 418, Build:google/bullhead/bullhead:7.1.1/N4F26O/3582057:user/release-keys

Samsung GT N7100 (Galaxy Note 2), OS:4.4.2, CPU:armeabi-v7a, GPU:Mali-400 MP, Build:samsung/t03gxx/t03g:4.4.2/KOT49H/N7100XXUFNE1:user/release-keys

Sony D6603 (Xperia Z3), OS:6.0.1, CPU:armeabi-v7a, GPU:Adreno (TM) 330, Build:Sony/D6603/D6603:5.1.1/23.4.A.1.264/2418263178:user/release-keys

Not reproduced with:

Samsung SM G925F (Galaxy S6 Edge), OS:6.0.1, CPU:arm64-v8a, GPU:Mali-T760, Build:samsung/zeroltexx/zerolte:6.0.1/MMB29K/G925FXXU5DQA7:user/release-keys

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Fixed in: 5.6.2p4,2017.1.0p1, 2017.2.0a4