im talking about save state. i never save normally
It should be suggested to use both. After many reloads and saves a savestate will become unstable and hinder gameplay. So once such an error happens with a savestate you should save your game in-game and then exit DaedalusX64. Restart DaedalusX64 and then reload your in-game save. Once at this point you should save over your old savestate with a new one and you'll be set to continue using savestates and playing the game.
I'm not sure if your issue is related to this one at all, but I feel it's important to know since you've never used in-game saves.
Sorry I'm not able to help much with this issue, but maybe salv-e or corn could provide some more insight.