It seems that crash is caused by Invoke method being called multiple times in a for loop.

To reproduce:

1. Open the project, attached by tester
2. Open MiniGame scene, if not open
2. Enter Play mode
3. Wait for a few seconds

Expected: Editor should not crash when calling Invoke method multiple times in a loop
Actual: Editor crashes after calling Invoke method multiple times in a loop

Reproduced in 5.5.0f3, 5.5.1f1, 5.5.2f1, 5.6.0f3, 2017.1.0b1

Fixed in 2017.2.0a2