I also have a similar crash. This happened in a game with the mod "Transport drone" from kolan. I put a road tile at a specific location and it crashed. Here is the saved game: https://drive.google.com/open?id=1t-TvOc9HU2pnpgMTl4J_AilNjysOeMrJ I add an image to show where to put the the ro...

Factorio crash when i try to save a game (or during autosave) The game (a bit large) can be found at the location: https://drive.google.com/open?id=1_sDhu63t9MHqxcALqqanzmETF0sFq6Vc The mods can be get by synchronization. You may need a private, not published mod at the location https://drive.google...