When I try to encrypt the database with AES, blowfish, square, DES... I have no problem. But when I try to encrypt the databse with twofish (128 bits - 256 bits) It displays a message saying "Error occurred on changing the password".
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We've tried it on the test machines and it appears there is an encryption conflict with TwoFish and Windows. This will be corrected for the next update. :)
AES is usually a very good choice for encryption.