Hi Zeno,
A potential reason why you might be encountering this is because MATLAB does not support the serialization of database connection objects. This design choice prevents the saving and reloading of potentially disconnected database connections from ‘.MAT’ files.
In order to address the ‘not serializable’ warning and maintain your model's functionality, consider storing connection parameters separately and re-establishing the connection dynamically at runtime, rather than saving the connection object itself within the Simulink dictionary.
Hope this helps!
