Any problem connecting emini-futures with IB TWS?

ESZ2-GLOBEX-FUT or NQZ2-GLOBEX-FUT, they were working last week, but now amibroker shows they are "Invalid symbol" . thanks

Please DO SEARCH before posting duplicates, see:

https://forum.amibroker.com/t/ib-symbol-changed-for-nq-and-es-futures/32653/5