Why am I unable to use a Function Call block inside a For Iterator subsystem in Simulink 5.0 (R13) and later versions?

I am unable to use a Function Call block inside a For Iterator subsystem in Simulink 5.0 (R13) and later versions. The Function Call block is calling a function outside of the For Iterator subsystem. I was able to do this in previous versions of Simulink. When I try to do the same in Simulink 5.0 (R13) and later versions, I receive the following error message:

 A function-call initiator inside iterator subsystem 'test/8.3.10/Subsystem/For Iterator Subsystem' may not call a function-call subsytem that is not contained within the iterator subsystem

Answer 1

[MathWorks Support Team]

The ability to use a Function Call block inside a For Iterator subsystem was removed in Simulink 5.0 (R13) and later versions.

As a workaround, if you have a Function Call block that is calling a Function Call Subsystem, you will need to have both the Function Call block and the Function Call Subsystem within the For Iterator subsystem.