If you are signed in the AxCrypt app, that time(file password and sign in the password are same) AxCrypt app opens the encrypted files without any password.
AxCrypt 2 works just like your email software or most other password-protected systems. You sign in once and remain signed in until signed out. Just like you can read many emails without entering the password every time, AxCrypt will do the same. The files are still encrypted, but your password is remembered until you sign out of AxCrypt.
AxCrypt stays signed in until signed out, just like most similar applications such as your email. Once signed in, you can read, write and update information without having to re-enter the password, until signed out. This is by design.
If you are asking any other query, please provide more information about the issue and write a mail to firstname.lastname@example.org.