CRASH when when using SQLITECIPHER

[R-P-H]

I compiled the plugin as detailed and copied the sqlitecipher.dll to the plugins/sqldrivers folder. I use the code below to open an existing encrypted database (encrypted using db browser for SQLCipher). And it works great.

However, when I try and run the program on another machine (with all the necessary .dlls copied over as well) it crashes on start-up when trying to open the database. Why is the exact same program and libraries not working on my other machine ? (Both Windows 10 64-bit).

QSqlDatabase db = QSqlDatabase::addDatabase("SQLITECIPHER");
db.setDatabaseName("myDB");
db.setPassword("myDBPassword");
db.setConnectOptions("QSQLITE_USE_CIPHER=sqlcipher; SQLCIPHER_LEGACY=1;");