Windows installer auto-selects Morrowind.esm's path, wants Morrowind.esm
This causes the importer to fail. Should either select morrowind.esm instead of its path or prevent proceeding (at least require confirmation) if Morrowind.esm isn't selected.
(RM-4254 from redmine: created on 2017-12-08 by Missun Akin, , closed on 2018-03-24 by nobody, duplicates #4336 (closed))