I'm guessing what happened is the mansion had already been raided and therefore due to not being visited in 60 days was reset in the partial reset.

Would the same thing happen with normal villages I took my villagers from?

For them to completely dissapear out of existence of Minecraft?

They haven't been visited for the past 60 days.

@iDogeTwinkie Would the same thing happen with normal villages I took my villagers from?

For them to completely dissapear out of existence of Minecraft?

They haven't been visited for the past 60 days.

Yes.