General discussion about Heroes of Might and Magic II.

It might not be a bug. It would be interesting to open that autosave with a cheat and see where the Sorceress came from and if there are any oases along the way. By the way, maybe she had excellent logistics?
Yes, old maps don't have scrolls or stables. However, you can edit them, adding a stable, scrolls – then it will be saved in the new format.