Hello Ajaykumar G
The List collector values are populated only at onload time and when the user performs a filtering action manually, it is not repopulated when the referenced variable value is modified by the user like in the reference variable.
Due to this list collector behavior, on the catalog form, the "Users" List collector variables are not loaded with expected values when the department was selected.
Resolution
You can work around the above-described limitation of List Collector by adding the variable attribute ref_qual_elements=<name of dependent reference variable, for example, department as in the above-mentioned scenario> on the list collector variables.
