Hi, i had the 4.6 version and waited a while. Then i downloaded the 4.9 and i'm using my save from 4.6 so maybe it's that. I'm using windows and downloaded the files on the MEGA link and no i'm not using any mods of decompilers, since i don't know what it is x).
Now that's a first... Maybe a corrupted file 🤔
Here try with this link that is a packed version https://nopy.to/17R49K02/Ataegina-0.4.9-pc.zip
Let me know if it solves your problem