Well, i found a fix. For me at least, i hope it works for all of you as well.
What you need to do is make sure that all of your "prefs.prop" files are in sync.
under normal circumstances there should be 2, one is located in Documents\Telltale Games\The Walking Dead the other is found in Steam\Steamapps\Common\The Walking Dead\Pack. I have the steam version so that's where my other file is located, if you have the non-steam version i have no idea where it is, but you should be able to find it with a bit of poking around. Anyway,
make sure that they are both completely identical, down to the minute, whichever one is most recent preferably. So basically copy the chosen file, delete the outdated one and paste the good one in its place.
To be honest, i don't know if this really fixed it, but it was the last thing i tried before booting up the game again and being pleasantly surprised to find that it now allowed me to play Ep. 5 without generating choices. mine was out of date by a mere 24 minutes, but apparently that was enough!
Anyway, i hope this works for you all, and if you need any more clarification, or another fix possibility, take a look at this thread here.
http://www.telltalegames.com/forums/...ad.php?t=37049
That was where i got this idea, so all credit to DarkSoroush!