Set value in nested form is failing

sistemas_SAG

best regards,

I am trying to implement a nested form, but when registering the new data it does not detect the selection in the nested table.

I can edit and add new options for the field (nested table), but the selected option is not recognized when submitting the form

I would greatly appreciate any help

this is my code and debugg

the server side i have this code to the main table in respectid field:

and this for procces the nested table:

the answer from debugg is the next:

allan

Can you use the debugger to give me a trace please - click the Upload button and then let me know what the debug code is?

Thanks,
Allan