SIL test fails due to data store update issue, unlike successful MIL

Hi Community,

I am encountering an issue during Software-in-the-Loop (SIL) testing. My Simulink model utilizes three data stores: 'A', 'B', and 'Y'. Data stores 'A' and 'B' serve as inputs, while 'Y' represents the output, intended to store the sum of 'A' and 'B'. During Model-in-the-Loop (MIL) testing, all test cases pass successfully. However, when I transition to SIL testing, the 'Y' data store fails to update, causing the test cases to fail. I have verified the generated code, and it appears to correctly reflect the model's logic. Could anyone provide insight into potential causes for this discrepancy and offer troubleshooting suggestions? I have attached the model for reference.

The procedure I am following to create the SIL test harness is as follows:

Right click on Subsystem ==> Test Harness ==> Create for subsystem ==> Sources and Sinks => Test Sequence ==> Advacnced Properties ==> Verification Mode => Software in Loop.

[Abhijeet Kate]

While i am doing back to back testing i am getting "Subsystem SIL_TEMP/Subsystem contains 'Data Store Read' or 'Data Store Write' blocks, which is not supported for SIL and PIL subsystem simulations." this kind of error. i also attach the screenshot of error message for the reference..