I can confirm the mentioned bug: For me it happens almost everytime I use the "see"-option with the Aleph. If I change location after doing that, I get stranded in a mountainous region where I can't move, only leave the screen - to end in another mountainous region without a possibility to move. When I load an earlier savegame, it tends to crash first, after the second attempt it works again. It seems to happen only if I use the "see"-opiton.