Steps to reproduce:
1. Download 1077373_repro.zip
2. Build project on Standalone platform with IL2CPP backend
3. Launch build

Expected results: Cubes move in a random direction
Actual results: Exception is triggered.

Reproduced with: 2018.3.0a11, 2018.2.6f1, 2018.1.9f2
Tested on: standalone and UWP platforms

Exception:
System.IndexOutOfRangeException: Index was outside the bounds of the array.
at RefIntTset.Interpolation (System.Int32& offset) [0x00000] in <00000000000000000000000000000000>:0
at RefIntTset+<OnUpdate>d__10.MoveNext () [0x00000] in <00000000000000000000000000000000>:0
at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00000] in <00000000000000000000000000000000>:0
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:LogError(Object)
<OnUpdate>d__10:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)