I have launched DrNimbus on my primary hub, and I can see messages coming through, but if I select any other hub in the dropdown, it looks like it connects, but I don't see any messages.
DX UIM - any version with Secure Hub and Robot applied
Slowness
Although it may appear not to be working, it is actually a performance issue - if you wait longer, the messages will eventually begin to flow.
In most environments it will take around 30 seconds but we have seen it take as long as 2 minutes.
There is no workaround, the issue is because of the way requests are queued with secure hub. In a busy environment, it will take longer.