N++ v7.5.8 x64
PS 1.2.0.0

It is observed that notepad.activateFile() sometimes seems to ignore the request when its argument is an unsaved file, e.g. "new 1", "new 2", etc.

This video (https://imgur.com/CfNdDnP) shows that I have 4 such files open, 1,3,4 and 5, but that "new 1" can't be switched to using notepad.activateFile('new 1'). The video shows that 'new 4' and 'new 5' can be switched to. No problem for 'new 3' either (but that is not in the video).