Unable to create a multi select list in MWO- 23R1

I have created a list by enabling the multi select as below and added it to the page.

list BulkAssigList for JtExecutionInstance {
   label = "Bulk Assignments";
   multiselect = [true];
   crudactions {
      new {
         enabled = [false];
      }
      edit {
         enabled = [false];
      }
      delete {
         enabled = [false];
      }
   }
   field WoNo;
   field TaskSeq;
   field ExecutionInstanceSeq;
   field TaskRef.CCallId {
      label = "Call Id";   }
   attachments {
      enabled = [false];
   }
}

I can able to see the option to multi select  the list in solution Manager->mobile apps->configuration→ Apps for Page Designer->Service Engineer ->My Work → Work Details

 but i am not able to multi select the  same list from IFS MWO application

@Yasas Kasthuriarachchi @James Ashmore @Rukmal Fernando @Uthpala