The button looks active after being clicked, but no information is shown, which is confusing for users.

Preconditions:

• At least one trigger exists.
• Triggers are in PROBLEM state.
• At least one trigger should be with unknown status.

Steps to reproduce:

1. Go to Dashboards.
2. Create a Trigger Overview widget.
3. Click the bullet down button next to a trigger.

Result:

• The bullet down button becomes highlighted (displayed as a square).
• No hintbox is shown after clicking the button.
• The hintbox appears only when hovering the mouse over the button without clicking.

Expected:
The visual active state of the button should match the actual behavior.