It seems to me that the crash bug in certain positions, which has been mentioned occasionally here, is only reproducable as long as you don't restart the GUI (Fritz 9 GUI, version HIARCS 10 without any server updates). So one might be thinking that it's rather a GUI problem - but on the other hand it's a fact that most other engine don't show any problems (including other Rybkas like for instance 2.2n2). Also, it seems to me that the crashes only appear when starting analyze mode. Loop 12 also crashes occasionally in this situation, by the way - and even more often.
Whatever that's worth...