I am having a minor problem having set up my sync clients using your information.
I have several machines all running the same (nominally) OS (Mint 18.1 Cinnamon). All but one of these machines do not show Nextcloud icons in the panel I have to re-open the client from the menu. The sync client appears to work without fault on all machines - the various client machines use different content from the server and are used for different purposes.
Any suggestions as to a fix for this problem would be appreciated. (The server is on a Raspberry Pi 3b running Raspbian and NC 11.0.2