Change layout size doesn't work

Desktop editors
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3

Hello

  1. Community version 9.1.0.167 (x64 exe)
  2. since i can’t upload any attachment (because of new user nor PM you) i upload the file on catbox https://files.catbox.moe/wzuyc2.zip
  3. https://youtu.be/CbavGgVE59I

hopefully you can find the fix for this, because yeah… now i forced to install ms office just to change the size layout for all or only some page… maybe if i can give suggestion. when we do the things (change the layout size) you (the only office) ask us to change it only this page or all page… so our job become easier :>