Infinite loop caused by a comparator (on subtractor mode) feedback loop.

I've attached the crash log and a schematic of the circuit.

The top repeater signifies a comparator on subtractor mode, the second one is a simple comparator.

I can only assume that some missing safe-guards allowed the subtractor to update itself continuously, until the game crashed.

NOTE: if you want to reproduce this, you should place the second comparator (acting as a buffer) last, to get the exact same state.