I have a print with 4 parts on it that for the most part prints fine without rafts. However my Prusa bed isn't completely flat so that parts don't go together as well as they should so I want to use a raft to correct for warps in the bed. 2 of the 4 parts are the same height but when I add a raft under them with exactly the same settings the rafts don't come out the same height. As a result the top of one of the pieces gets cut off. That's another oddity in the print as it is under 200mm even with the raft and there is no end height for the part so it shouldn't be getting cut off. What could cause the slicer to change the raft settings like that?