Website Monitoring: not collecting Data

[tobi2k]

I have installed Splunk 8.01 and the tool Website Monitoring. After that I added two websites initially (Create Inputs). That also worked. The tool collects data.

The additional Sites are listed under "Data Inputs -> Website Availability Check" but they don't appear.

Now I want to add more websites. But these are not shown to me. I am at a loss.

Splunk Version: 8.0.1
Build: 6db836e2fb9e