MMExtension as of commit 3cda120e (2023-01-01) applied to MM7 with MM7Patch 2.5.7 resets indoor maps every time you leave dungeon. Happened to other users as well.
Issue is not present at commit 74e8d73d (2022-04-20).
My reproducing: enter previously cleared Castle Harmondale, leave it, load autosave (or reenter).
MMExtension as of commit 3cda120e (2023-01-01) applied to MM7 with MM7Patch 2.5.7 resets indoor maps every time you leave dungeon. Happened to other users as well. Issue is not present at commit 74e8d73d (2022-04-20). My reproducing: enter previously cleared Castle Harmondale, leave it, load autosave (or reenter).