However I found a websocket request is always pending:
wss://team-4022.postman.co/socket.io/?__sails_io_sdk_version=1.1.12&__sails_io_sdk_platform=node&__sails_io_sdk_language=javascript&EIO=3&transport=websocket
This is usually due to some network problem. Are you accessing the dashboard from behind a firewall? If so, your network administrator will have to enable websockets for the dashboard (or syncing on the app) to work.
If this is not the case, I’ll need more details. Does the call time out eventually? Does it have any response code? Do websocket connections work from other applications?