Shipwreck creates log files of what happend, could you go here: ~/.local/shipwreck/log and send the most current one.
OR
go to the same path and send me the save file that crashed your game. I will rerun the game to make sure I didn't miss anything.
Lastly, If you played the game from a previous save, you may have to restart your game. Events didn't deleting tiles properly and would corrupt the game save. Currently fixed in this patch but the current save may or may not be corrupted.
M key press thingy will be fixed shortly and thanks. <3