Z-Wave Controller Node is not showing up in Network map

Hello everyone,
I am currently having some issues with my Zwave network. Sometimes it randomly takes multiple seconds for a command to be executed just for it to work perfectly fine almost instantly a few seconds later.
As I was investigating the problem I noticed that the controller Node (001) is not showing up in my Zwave network map. Is this normal behaviour? In other Threads I read that the master node has an orange circle around in my network no node seems to satisfy that condition. I am hoping that this might be (a part of) the problem with my network and someone here can halp.

Thanks in advance!