BusSelector can't display the InputSignals

Hi support:

I defined a struct type in c - mex level2 s-function, and set input port and output port as the struct ,and the block wire with bus selector ,but bus selector's parameter dialog is empty, and then I press get(gcbh) in commandline , the 'InputSignals' is not empty,and I used the script wirte element "var1"in bus selector's Selected elements diaglog ,

the model can be simulated .

so do you have any methods let bus selector full with bus elements in the parameters diaglog.

[Debadipto]

Hi Xuejie, please share the Simulink model file for the ease of reproduction and debugging of the issue.