Erased the first home...

I created the second home 3000block far from the first home.
after that I went back to the first home but it has been almost erased...
The first home was made on version 1.16.201.
The second home was made on version 1.16.210.
And I visited the first home on version 1.16.210.

Is it normal behavior on this game?
Or is it an effect of the update to version 1.16.210?