When creating a new data view Iin Kibana classic, there are a number of indices created automatically, such as .internal.alerts-observability.apm.alerts-default-000001. The index is hidden but an alias matches it that is not hidden - .internal.alerts-observability.apm.alerts-default HOWEVER, these items fail to show up in the matched data source list. If you manually create an match an alias you will see it in that list.
When creating a new data view Iin Kibana classic, there are a number of indices created automatically, such as
.internal.alerts-observability.apm.alerts-default-000001
. The index is hidden but an alias matches it that is not hidden -.internal.alerts-observability.apm.alerts-default
HOWEVER, these items fail to show up in the matched data source list. If you manually create an match an alias you will see it in that list.