Key commands help page: connection refused

I recently updated to Dorico 4.10 and just discovered that the key commands help page does not work (at least on my machine, a MacBook Pro M1 Max ). Whenever I try to open the page, my browser displays an “ERR_CONNECTION_REFUSED” message instead. The browser attempts to connect to localhost:51197, but it seems that no process listens to this port (telnet localhost 51197 also result in an error message “telnet: Unable to connect to remote host”). My Firewall is disabled…
Am I missing something?
Thanks in advance!

You are right, this seems to be broken. I recall having read a post where Daniel said it would be back in next update…

Indeed - this will be fixed in the next update. Sorry for the inconvenience.

Indeed, this was reported a little while ago: