I'am using Kibana in v6.3.2 and I'am trying to visualize IP Networks by there names and devices. So I've created a visualization to filter networknames. Some of these Networknames are just empty Strings and this causes the following behaviour:
The controls visualization seems to select empty values in default.
After adding and applying a Network which I'd like to filter to, the selected Network and the empty ones are shown in my dashboard.
I think this is not an expected behaviour.