Sorry, but this has never been true. At no time in the history of Z-Wave JS and HA has it been true. Maybe you are confusing integrations and add-ons.
https://www.home-assistant.io/integrations/zwave_js/#can-i-switch-between-z-wave-js-and-z-wave-js-ui
To keep up to date on version information, including add-ons, consult https://zwave-js.github.io/which-version/.
You can switch between the official Z-Wave JS add-on and the Z-Wave JS UI add-on. However, but you cannot run them both at the same time. Only one of them can be active at the same time.
It’s been so confusing I wrote a guide to switch. Before you troubleshoot further, you should figure out what you are using.