Why Datahub node does not add devices from the WebAccess project?

The datahub does sync with the WebAccess project as the status goes green in the project node but does not add the devices of the SCADA project automatically.

If the web access host uses your company network to connect to WISE-PaaS/DataHub, which might block the WebAccess upload, please try another network like mobile phone hot spots.
Also, have to configure the tag whitelists in WebAccess.