Hi subtledoctor
Now my savegame will not open in any instance of NI.Is the file size an issue, or could it be down to something else? (E.g. number of effects on the characters, or something like that.)
Savegame or some resource file can be corrupted, NI may hang on it, some time ago i have similar case, there was error in pocketplane/familiar stuff inside *.GAM, just as example.