2 accounts on 1 PC: key bindings problem

I have two different PoE accounts on a PC. Two different persons playing those accounts. And they want to have quite different key bindings. The problem is that by unknown to me bug or reason then share single UI setting and binding file. So as soon as one of them changes all key bindings, they got changed for all PoE accounts launched on that computer.

How I can avoid this bug/problem? Without making several windows users on a PC.

In any other online game I never met this problem. All settings is always changed and saved for each login individually.

Think all your bindings are saved in the production_Config.ini located C:\Users\<PC user name>\Documents\My Games\Path of Exile

Set up your bindings, copy the file and place it somewhere safe, let him do is own and swap the files when you log in...should work but not 100% sure.