After a week or so of struggling with the original tagger I found an Android tagger that was much more dependable. Not as good as the MMW one I had grown reliant on, but good enough.

I have found a workaround for the "Remove From Library" option I had requested. Deleting a folder/directory from the list of library directories then reinstating it prior to scanning for new/updated files seems to work.

REQUEST WITHDRAWN

I am having difficulty getting MMA to recognise updated artwork in Flag files (updating via another app).

Since the scan for updated files doesn't help I would like to remove the tracks from MMA's library to force it to read them anew. Problem is MMA only offers the option to Remove From Device which literally deletes the entire file.

I therefore request a Remove From Library option when the dustbin icon is pressed.