Release : 11.6
Component : CA Automation Point
What you see is just a visual artifact. The machine hostname is so long so that it overlaps over the "Disconnect" button.
With short hostname you would see following:
The HA simply indicates that this machine is configured for High Availability.
This issue is purely cosmetic, I will raise it with our UI team.
After raising with the UI team...
This is by design. I have raised this feedback to the UX team. Right now only way to adjust the size is using the browser's zoom feature by holding Ctrl and pressing +/- or holding Ctrl and scrolling mouse wheel.