[Service Portal]: Unable to delete Rows from containerDescription[Service Portal]: Unable to delete Rows from container .tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}Steps to Reproduce Steps to reproduce 1. Go to Service Portal > Service Portal Configuration2. Create a new page3. Add two rows into the container (Refer to screenshot)4. Click the first row and hit delete key5. Click Yes when confirmation dialog is shown Observe confirmation popup won't disappear. Click "No"7. It looks the row is deleted, but the first row will be shown up by refreshing the browser There is a JS error in the browser console as below.TypeError: Cannot read property '$$hashKey' of undefinedat js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:74942at r (js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:50343)at Function.nu (js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:50405)at Object.remove (js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:74941)at ChildScope.removeCurrentSelected [as confirm] (js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:75268)at fn (eval at compile (js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:13100), <anonymous>:4:247)at expensiveCheckFn (js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:14032)at callback (js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:17122)at ChildScope.$eval (js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:14794)at ChildScope.$apply (js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:14813)(anonymous) @ js_includes_sp_designer.jsx?v=01-12-2021_1130&lp=Mon_Jan_25_01_08_19_PST_2021&c=20_271:12324 .tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}WorkaroundThis issue is under review. If you are experiencing this problem, contact ServiceNow Customer Support.Related Problem: PRB1472135