Another player has reported the same problem with shift-?. I have changed it to shift+h instead which should work. In case you also had problems accessing the crafting menu, I changed it to "c". Regarding load: you wrote earlier that you can't save so maybe the problem is there? If saving works, it should write a message in the log on the game screen about the game being saved and also it should generate a save file called Game.save in the Save folder. If that file is not there, loading will not do anything. If you have more info on the load/save bug, let me know and I will see if I can figure out the issue. Note that the save file will be very large on larger maps so maybe try it with a small map and see if that works.