Travel Analytics UI freezes upon table selection

[BenReim]

1. npm run start
2. Open travel_analytics FE preview
3. In the Bookings Table

• Click on the first-level group header (Airline)
• Click on the second-hierarchy group header (Booking Status)
  -> Observe that the UI becomes unresponsive and an error is thrown

Log-dbg.js:499  2024-01-05 07:49:55.917800 Unexpected element - Error: Unexpected element
    at Object.beforeOverwritePlaceholder (https://ui5.sap.com/1.120.1/resources/sap/ui/core/library-preload.js:2262:1381)
    at c (https://ui5.sap.com/1.120.1/resources/sap/ui/core/library-preload.js:2256:2922)
    at Array.forEach (<anonymous>)
    at l.addElements (https://ui5.sap.com/1.120.1/resources/sap/ui/core/library-preload.js:2256:3588)
    at https://ui5.sap.com/1.120.1/resources/sap/ui/core/library-preload.js:2256:9542 sap.ui.model.odata.v4.ODataModel