My files app allows to open multiple windowses, and in each of them I can click on a file to open with this text editor. This allows me to open multiple files, e.g. to compare or copy things.
The problem is that the current position within each file (both of the cursor and of the displayed lines) changes when changing between windowses with the editor open.
The same happen between opening the editor from the files app, and also opening the editor on its own.