In the case of wide angle photos, especially if you have land features in the picture there could be matching problems. You can use the areas option to block these areas in the images to interfere with the detection process. Also, for now the application handles a reasonable amount distortion (there are several options you can tweak in menu->options->matching) in order get you image solved. Fisheye projection corrections (or alike) I have not implemented but it's on my todo list for near future.
And there is something else you can try on these images, use hint.
I will look into the crashing problem at a certain matching step - can you please email me these images?
In some cases the detection will work without any problem - like in the picture bellow the guy managed to solve at first try: