Hi guys,
Got a little bug in FCEU 3.0.8 (the newest release).
You cannot have more than 2 savestates (snapshots).
If you want to create a new state, FCEU is going to make a second state but the name of the state is wrong.
Example:
State 1 is called castlevania |1.fce and the screenshot is called casltevania |1.png
State 2 is called cast~|2.fce and the screenshot is called castlevania|2.png
The error you will get is: "Cannot found file".
For people who have the same issue. You can rename the second state like the first one.
