yes, exactly, depending on the map geometry, some pieces and objects from the map might be mis-aligned, leading to map geometry missmatch, leading to crashes,I just tried to open up a new game and realized they shifted the save book position.. mabe i just need to get myself new save from outside the church.. i shall try that in abit
though, the literal safe book thingy, with where the chest is, should be version-independent and stable, after all that's the only developer-intended way to save your game. If they really screwed that save mechanic, and are forcing players to use an emergency save on a map whose geometry is not broken in the next game's version, well that would kinda suck, and maybe they will drop a bugfix, just like they did from 0.82's different bossfight bug fixes.