Originally Posted by DjNDB
I am not sure if your savegame can be fixed, but there's something you can try.
First make a backup of your savegame folder ( usually %USERPROFILE%\Documents\Telltale Games\The Walking Dead ).
Next you should disable steam cloud for TWD (In Steam, right click TWD and select "properties". Open the tab "updates" and remove the checkbox from "Enable Steam cloud synchronization for TWD").
Then check if there are additional prefs.prop files in the install folder (e.g. \Steam\SteamApps\common\the walking dead) or its subfolders.
If so make backup copies of them, and delete the originals, so the game doesn't find them.
Now try if you can proceed in the game.
If you can't, try individually replacing the prefs.prop in the savegame folder, with one of your backup prefs.prop files from the install folder, and try again if your savegame works.
If that doesn't work either, you might have to sacrifice your savegames, by deleting the entire savegame folder.
This worked. Specifically, replacing the prefs.prop in the savegame folder with the one from the install folder. Thanks a lot for the help.
Do I need to keep the steam cloud disabled indefinitely?