So, I am all out of ideas. I'm trying to add the submarine map from the Restoration Project (RP) to the Megamod (MM). I don't want to have to recreate the whole map. To this end, I have done what I have always done to include a new map: I install the mod to some location, open the map in the mapper pointed at that location, remove all items and critters (and sometimes new scenery) that are unique to the mod, recreate those critters and items for the MM, open the mapper now pointed at the location of the MM, then re-add the new critters and items. That's it. This just isn't working. All the relevant new art from the RP has been added to the MM, using the same scenery numbers. I went so far as to remove all scripts, spatial scripts, and map script. Even tried the thing about converting maps to texts. The mapper just refuses to open the sfsub.map for me in the MM. Any ideas? If I have to rebuild the map from scratch, well, it'll be a while before that map and quests are added... a long while.