When you are in the crafting menu and put your resized map in your active slot it will show the map u opened the last time

Steps to reproduce:

1.Open an empty map

2.Put it in your active slot to look at it

3.Go in to a crafting table menu

4.Resize it with 8 pieces of paper

5.while still being in the menu put the map in your active slot

6. in the background u will see the map that is not resized.

7 if u lieave the menu it will resize

sorry for my bad english