It seems that the game couldn't save character properties correctly in some environment.
When saving character properties file, real number is exported with comma (,) in some countries.
e.g.
1.345 <- Real number with dot (I expected)
1,345 <- Real number with comma
So the game can't read number because it can't distinguish comma in number and separator.
As a result, the game failed to parse character file.
From this version (v1.31), the game save properties not as real number but as integer.
Of course, you can import existing character.
Changed files in this update