Now i use org-roam-node-find to capture note after capturing the note.
When you return back to your note 1 the heading 1 gets an id.
And this is the result after capturing a new note.
Let us clearly understand what exactly you do here.
You have your cursor as you describe
You call M-x org-roam-node-find and type a new title that does not have a file yet
You select a capture template (what is your capture template?) and create a new file
You press C-c C-c to complete the capture. Does this automatically take you back to note 1 where you started from? Or does this take you to the new file you just created?
How do you βgo back to note 1β?
If this is (roughly) as you do, Org-roam does not add a new ID to heading 1 as you describe. Mine does not.
Perhaps this is not your procedure. In this case, I suggest you describe yours with more detail and precision so that others can try to reproduce the problem.