A heads-up.
Ok, I'm being serious now... for real, I'm not joking. This is regarding any saves you made while playing Update15 (v0.9.0) basic or extended, modded or unmodded (doesn't matter). There is a massive amount of changes in the script... 621 to be exact. With that amount of changes the odds of your save being in a location that wasn't changed is... well, you do the math as it's much lower than normal.
What this means is that RenPy will do it's best to "rollback" to find a safe place to actually load your save in it's coded opinion. This may or may not work. That's it in a nutshell, no need for me to take you further in the weeds than that.
I only post this so folks don't start pointing fingers in any one direction without knowing what's really going on. Almost the entire previous update has been rewritten with the amount of dialogue edits made. Don't get mad at the dev, just load a save prior to Update15 or (my best completely biased advice) wait for the mod update and start from scratch so you get to experience all the new features. Yeah, I know, that was a shameless plug.