Dynamic batching causes a crash when the following conditions are met:

- Using the IL2CPP scripting backend.
- Running on a 64-bit iOS device.
- The Architecture is set to “ARM64” or “Universal”.
- There is a Mesh object which has more than two submeshes.
- One of these submeshes is empty (zero length index list).
- Dynamic batching is enabled.

This issue is reproducible with Unity 4.6.7p1, 5.1.1p3 and 5.2.0b1.

Note that it’s not reproducible on ARMv7 devices.