BPMN context-pad not properlly

I am currently using BPMN version v 0.12.1. I am using IE version 11.0.9600.16428. if click on the any component, context-pad is opened but select new component from context-pad is not working.

Should work for latest bpmn-js, which is version 0.20.x already. Unfortunately we cannot support older versions of the library.