GC Island Edits no Save.

[D3V3L0P3R22]

I am trying to edit the Island on Gamecube's Population Growing version but the edits won't save. If I open the file up after saving, the edits are gone. I thought maybe it had something to do with EMU and needing GBA load, but that doesn't seem to be the case.
The Left Acre also messes up the Villager house when placed. Removes all but the 'sign' which is an 'Unknown object'.
I have been using a Save originally converted/transferred from GC Memory Card and exported from Dolphin as .gci file. I also tested .gcs to do the same thing. -Using Latest Release 11/23/2022 on Win10.
All other features I've tried work well!