IQAN.export fails in MATLAB R2025b – Unrecognized property 'class' for Simulink.ConfigSet

Description

Environment:

• MATLAB Version: R2025b
• IQAN Toolbox: IQAN Toolbox for Simulink 
• Operating System: Windows 11
• Target Hardware: [e.g., MC4x]

Issue Summary: While attempting to export a model using IQAN.export('ModelName'), the process fails immediately after the Model Advisor checks pass. The error occurs within the encrypted P-code file verifyAndExport.p.

Error Logs:

Matlab

### All checks passed!
Unrecognized method, property, or field 'class' for class 'Simulink.ConfigSet'.

Error in verifyAndExport
Error in IQAN.export (line 38)
      verifyAndExport(model, varargin{:});

Troubleshooting Performed:

1. Manual Check: Running cs = getActiveConfigSet(model); class(cs); in the command window returns 'Simulink.ConfigSet' correctly, confirming the model configuration is valid.
2. Path Check: Verified that class is not being shadowed by other functions; it points to the MATLAB built-in.
3. Root Cause: It appears verifyAndExport.p is attempting to access .class as a property of the Simulink.ConfigSet object (e.g., obj.class). In MATLAB R2025b, this syntax is no longer supported for this class, and the functional form class(obj) or isa() must be used instead.

Request: Since the source code is encrypted in verifyAndExport.p, I cannot apply a fix locally. Is there an updated toolbox version that supports the R2025b API, or a workaround to bypass this check during export?