Are you using multiple selectors? If yes, then recheck after changing the last selector value. You should able to get fields value in qListForm.
From QASP 6.8 in qMultiSelector webpart page will refresh after last selector selection change by default.
You can change the configuration by editing the selector’s configuration and check the checkbox for “Refresh page when selection change” for selector you want to get value or pass value to other webpart. It will enable the page refresh on selection change for selector you check the option.
Thanks & Regards