What triggers buildings reset in existing town with import?

[warchump]

I have noticed that when importing game, sometimes the buildings in existing town changes. The building structures remain the same, but what the building is (weapon shop, general shop, residential etc) changes. This mostly occurs in Blister Hill.

I have imported game where most of the town are residential (purchasable) and there are hardly any guards and drifters are bashing down shops and generally lawless stuff. Even the government HQ/Police station building types were purchasable residential, which is cool but town felt empty so I re-imported.

The next time Police Stations were there but in rubbles and looked said, and other buildings were in rubbles and a squillion general shops with no bar. So I re-imported.

Now there are only small shacks purchasable and I tried to re-import several time but can't seem to get the buildings to reset any more.

Anyone knows what triggers the buildings to reset on import?

Of course I can go and build my own town, but my squad leaders "profession" involves, shall we say, profiting from the sunset and helps to relieve the rich and feed the poor (aka my squad's wallet). So I would like a big building in Blister Hill to live in