During the initial recording Test Studio records the selection option correctly with SelectBy steps. During the execution the proper options are selected, however some jQuery event is not triggered hence after saving the changes no selection is saved. As a workaround I have tried adding manually the option element into the element explorer and perform a click step against it. Test Studio is clicking in upper left corner of the browser (step 9 in the attached project) . When click edit in live TS is not able to highlight that element at all. To reproduce the issue see the attached test project.