Ok, my GOG download worked and I've confirmed that rolling back to 1.04 DOES fix this. However, you
must have a save that's before you call Nancy (or maybe shortly thereafter). If you have a save from after you call Nancy, loading it in 1.04 is still broken.
In my case, I had a save from 1.05 that was right before I called Nancy. Unfortunately, as pointed out above the game won't normally load a 1.05 save from 1.04.
However, I was able to get 1.04 to load the 1.05 save by doing the following:
- In the metadata.9.json file set
"buildPatch"
to "1.04"
and "gameVersion"
to 8
- Open the sav.dat file in a hex editor. Near the very start of the file you'll see a byte that's
09
:
View attachment 11101076
You need to change this byte to instead be 08
.
Doing that, I was able to load that save and it seems to all be fine beyond that, since the overall save file format did not change in this patch.
Oh and for as what causes the bug, there is an array in the save file that contains the "god mode entities" which I'm guessing are the NPCs that are unkillable. In the working save files Dum Dum is listed there, but in the broken ones he is removed from that list, which is likely why he doesn't show up.