So yeah, my mono-darkness opponent played Owl's Eye ... it disappeared a turn later, then reappeared. Here's a screenshot:
![](http://img707.imageshack.us/i/captureglf.png/)
Later in the game, he played two black dragons despite not having the quanta to play one ... he ended up with -2 darkness quanta:
![](http://img338.imageshack.us/i/capture2hm.png/)
The little icon denoting a possible desynch was on from the onset ... perhaps something relating to that?