@world
Unzip the exe file then open the unzipped one, always.
Activate Hack is disabled in several occasions:
1. Chosen folder does not contain grandchase.exe in the folder itself, and not in one of the subfolders. You need to choose the folder that contains Model, Motion, Stage, etc. as subfolders.
2. You did not follow instructions (once is enough) and therefore you lost some files. You simply need to open GC normally and let it patch.
About the Ascension problem... the thing is, I didn't edit anything in dungeon for SD hack, so chances are either the dungeon itself is bugged, or one of the monsters that are supposed to be dead is not considered dead program-wise. Do you mind telling me which monsters are present in the first map?