Client data - list of nodes empty

Hello all.
So I am working on the multi tenancy at flow fuse DB2. After viewing some videos, every people have under the description Accept client data some of nodes, but in my DB2, as you see bellow, is empty list :

Could you please tell me, why ?? What is wrong ? I have tried to restart NR, also whore RPi and nothing has changed.
Thanks a lot.

Are you viewing this on the RPI in its built in browser?

Check what version your browser is at - might be too old (may be errors in the dev tools console on your browser)

Also, try a different browser on another computer (access the RPi by IP or hostname)

@Steve-Mcl no, I am using PC browser, I have checked it on Chrome, and on FF, but still the same. Also I have new installed next RPi on another IP address with last version NR and node.js and after installing user-addon from flowfuse is everything same. Nothing differences.
Is there a problem, that it is local installation ?? I have not used cloud.

Do you see any errors in the browser dev tools console?

Are you using latest version of dashboard and node-red?